Niewmismatic Error Coins

Copper-Zinc-Tin Blank Of Malaysia Bunga Raya Series Dollar Coin (1989 - 1996).
The second series of Malaysia sen coins (The Bunga Raya Series) entered circulation in late-1989, sporting completely redesigned observes and reverses, but predominantly retaining the design of edges, diameters and composition of the first series' (The Parliament House Series) coins.
Changes include the depiction of items of Malay culture on the obverse, and the inclusion of a Hibiscus rosa-sinensis (Malay: Bunga Raya), the national flower of Malaysia, on the upper half of the reverse. The second series was designed by Low Yee Kheng.

In addition to changes on its observe and reverse, the size of the 1989-1996 1 ringgit coin an exception.1 ringgit coin was also reduced from a diameter of 33 mm to 24 mm, and was minted from an alloy of copper, zinc and tin, as opposed to the first series' cupronickel. The $ symbol was brought over to the new coin, but was dropped in favour of "RINGGIT" for coins minted from 1993 onwards.

On 7 December 2005, the 1 ringgit coin was demonetised and withdrawn from circulation. This was partly due to problems with standardisation (two different versions of the second series coin were minted) and forgery.

How blanks are made ?
Coin blanks used for striking coins can be purchased from coin blank suppliers, or be produced by the mint itself. In making such blanks, bars are first scrubbed to provide a consistent surface, free from impurities or imperfections which not only produce defective coins, but also reduce the life span of the dies.The bars are later annealed and rolled to become strips of metal having the exact thickness specified of each denomination of coin.
Blanks and planchets represent the same product at different stages of production: the unstruck, circular pieces of metal that become coins when struck between the dies. Blanks are unfinished planchets that haven't been through all of the processing steps necessary before they can be struck into coins. Once a blank has been through all of the processing steps, it becomes a planchet and is ready to be struck.

Malaysia Numismatic Society Auction No.157  29th September 2013. Museum Negara.Special Preview.Lots:51 To 75.
I am not a professional photographer,images posted are taken by using my normal camera to my lever best. These posts are done with my own initiative. Your comments are most welcome to better my Blog. Happy Niewmismatic.
MNS AUCTION NO.157 (LOT:1 TO LOT 25)
MNS AUCTION NO.157 (LOT:26 TO LOT 50)
Lot  Qty    Description                                                  Grade      Reserve Price
                                                                                                        (RM)
51    4        Malaya 1941 1 Cent, 5 Cents, 10 Cents
                 (all VF) & 20 Cents (Fine)                           Fine - VF       40
                                                                                 Realised: RM 75
52    2       Malaya & British Borneo 1953 $1 A/1 285683 (AU)
                 & $5 A/1 049841 (AVF)                             AVF - AU      900

53    4       Malaysia 1st, 2nd, 3rd & 4th Series RM1
                 Ismail Ali's & Aziz Taha's signature           "Average AU"     90
                                                                                  Realised: RM100
54    6       Malaysia 3rd Series RM1 E/80 364535/40
                 Ismail Ali's signature                   AU        120  Realised: RM120

55    2       Malaysia 8th & 9th Series RM2 DF2515712 & DF7144657 Ahmad Don's
                 & Ali Abul Hassan's (side) signature            UNC               40
                                                                                        Realised: RM55
56    3       Malaysia 9th Series RM2 DH5295796/99
                 Ali Abul Hassan's (side) signature        AU       40 Realised: RM 45

57    2       Malaysia 2nd Series RM5 A/66 228162/63 Ismail Ali's
                 signature (light foxing)                                   AU                 270
                                                                                  Realised: RM 340
58   5        Malaysia 11th Series RM5 BJ7527876/80 Dr Zeti Aziz's
                 signature (last prefix for paper note & first piece
                 light foxing)                                                   UNC               90

59   3        Malaysia 6th Series RM10 UM2416075/77 Jaffar Hussein's signature,
                 Thomas De La Rue                                       UNC               90
60   5        Malaysia 7th Series RM10 YG1291855/59 Ahmad Don's signature,
                 Francois Charles Oberthur                             UNC             140

61   4        Malaysia 3rd Series RM1 C/33 232837/38 (AU) & RM10 D/52
                 870369/70 (EF) Ismail Ali's signature          EF - AU           180
62    6        Malaysia 5th Series RM1, RM5, RM10, RM20 (GVF), RM50 &
                  RM100 all others EF to GEF, Aziz Taha's signature
                                                                                 GVF - GEF          300
                                                                                  Realised: RM 350

63    3        Malaysia 8th Series Replacements RM2 ZA0177601 (UNC),
                  ZB 0115147 (GEF) & ZC0559103 (UNC) Ahmad Don's signature
                                                                                   GEF - UNC       1,900
64     1       Malaysia 6th Series Replacement RM5 NZ0160503
                  (without silver thread) Jaffar Hussein's signature
                                                                UNC       280 Realised: RM360

65     1       Malaysia 6th Series Replacement RM5 NZ0266298
                  (with silver thread) Jaffar Hussein's signature     UNC        250 
                                                                                    Realised: RM 300
66     2       Malaysia 6th Series Replacements RM5 NZ0421746
                  (light foxing) & NZ0552532 (both without cross on flag post)
                   Jaffar Hussein's signature         UNC    450 Realised: RM 450

67    2        Malaysia 10th Series Replacements RM5 ZA0242185 &
                  RM10 ZA0246485 (Error - minor shift of red serial nos.
                  about 0.3cm to left) Ali Abul Hassan's (centre) signature,
                  1st three & last two nos. same & matching         UNC         250
                                                                                         Realised: RM250
68    3        Malaysia 11th Series Replacements RM5 ZA0835089 (light ink stain),
                  ZA0923022 & ZA1001003 Dr Zeti Aziz's signature
                                                                            UNC     120 Realised: RM120

69    2        Malaysia 10th Series Replacements RM10 ZA0747568/69 Ali
                  Abul Hassan's (centre) signature    UNC     260 Realised: RM260
70    4        Malaysia 8th, 9th, 10th & 11th Series Replacements RM10 all ZA's,
                  Ahmad Don's, Ali Abul Hassan's (side) & (centre) & Dr. Zeti Aziz's
                  signature                   "Average AVF"    100 Realised: RM100
                        
71    1         Malaysia 6th Series Replacement RM50 WA0676724 Jaffar Hussein's
                   signature, Thomas De La Rue   VF       100 Realised: RM120
72     1        Malaysia 7th Series RM5 QU2659821 (Error - Printing on obverse
                   lighter shade - minor foxing) Ahmad Don's signature, Canadian
                   Banknote                                                             UNC           550

73     1        Malaysia 9th Series RM10 AZ5511915 (Error - Red column on
                   reverse right broader and part of serial nos. are in the border)
                   Ali Abul Hassan's (side) signature                         UNC            250
                                                                                      Realised: RM250

74     1        Malaysia 12th Series RM10 AH1981098 (Error - Extra fin (paper)
                   with colour codes on obverse bottom right corner) Dr Zeti Aziz's
                   signature                                UNC       900  Realised: RM1200

75      1        Malaysia 6th Series RM500 ZV7658313 Jaffar Hussein's signature
                                                                AU         1,300 Realised: RM1400

  To Be Continued...........

To View: MNS AUCTION NO.157 (LOT:1 TO LOT 25)
              MNS AUCTION NO.157 (LOT:26 TO LOT 50) 

Malaysia 50 Cents Coin Blank

Blank


This disc has not passed through the upsetting-mill process. The upset mill raises or upsets the edge of the planchet for the purpose of better striking and stacking of the coins. Discs without an upset edge are correctly called blanks.


They are generally assumed to be easy to fake, but recent investigations have found this to be much more difficult than first thought.

No  copper-plated zinc cent blanks are known yet. This is due to the fact that the copper plating is applied after the blank passes through the upset mill.


This 50 Cents blank was given to me by Mr.John Goh,the President of Sibu (Sarawak) Numismatic Society last week. It was a token of appreciation to me for helping him to authenticate and verify his collection of error coins.


I have been looking for a 50 Cents blank for very long time to complete a full set of Malayisa coins' blanks and planchets.

(Posted in Port Dickson)

Malaysia Obsoleted  $1.00 Coin Blank.(Counterfeits)


Coin blank - a flat metal disk ready for stamping as a coin after the upsetting of its rim.
Most of the properties demanded of a coin must already be present in the initial coin blank when it is ready for striking.Weight deviations of cut blanks are mainly dependent on the variation in the thickness of the final strip used to make the blank.



Coin blanks must be free from internal defects such as porosity, lamination, and, if applicable, cladding defects. Since even the most careful manufacture does not guarantee and absolute freedom from surface flaws such as scale, scratches, indentations and stains, a final visual inspection is carried out. Keep in mind that a genuine coin blank will have a rough, perhaps sharp edge, and the blank may be off-color or grainy looking, depending on what part of the coin blank processing phase it was in when it left the mint.


Although minting presses are still working by the principle of knuckle-joint presses, they have been steadily improved and further developed. The initial performance of 40 strokes per minute has been raised up to 750 during the last few years. This means not only a high increase of the forming speed of the coinage material, but also of its running speed in contact with the coining dies. High-speed minting presses are only efficient and economical, if the relatively expensive coining tools have a long and trouble-free service-life. This implies a growing demand for coinage blanks which are very accurate to size with a high surface finish. Increasingly faster and more complicated mechanisms have been developed for the transfer of blanks to the coining tools proper. This means that coin blanks of high precision and uniformity as well as with excellent anti-frictional properties are now demanded.

What Is A Coin Blank ?


A coin blank is a metal disc onto which a coin will be struck. The blank is punched in its round form from a strip of machined coin alloy and has not gone through the process of  upsetting mill, which raises the rims on the blank and turns it into a planchet.


 A blank that doesn't  gone through the process of  upsetting mill used to be called a Type 1 blank. The planchet was called a Type 2 blank.


When referring to ancient coins, or coins made on cast metal discs, the term flan is frequently used instead of blank or planchet. The blank must be turned into a planchet before it can become an actual struck Malaysia coin.

If it is made of silver, it is almost impossible to authenticate, but if it's clad, an expert in error coins could probably authenticate it, in which case (if authentic) it's worth maybe RM50 or more. Keep in mind that a genuine coin blank will have a rough, perhaps sharp edge, and the blank may be off-color or grainy looking, depending on what part of the coin blank processing phase it was in when it left the mint.


Beware of nice, shiny looking coin blanks with no upraised rim and a smooth edge. These usually just counterfeit blanks made to deceive vending machines.

Bank Negara Malaysia Aluminium Souvenir Token Blank.
Rarity:RRR

A coin blank is the metal disc onto which a coin will be struck or a flat metal disk ready for stamping as a coin. The blank is punched in its round form from a strip of machined coin alloy, and then processed through the upsetting mill, which raises the proto-rims on the blank and turns it into a planchet.

Bank Negara Malaysia Aluminium Souvenir Token Blank.Obverse.

Bank Negara Malaysia Aluminium Souvenir Token Blank.Reverse.

Diameter: 24.80mm
Thickness: 3.03mm
Weight: 3.87gm.

This Aluminium Token Blank of Bank Negara Malaysia Money Museum was listed as Lot.93 in MNS Auction.No.151 with a reserved price of RM30.Now it is in my possession with a realised price of RM30.

Plain Edge.

One Dollar Blank Used By Malaysia Bunga Raya Series Coins From 1989 To 1996.


Blank also known as a type I planchet.
A blank is a round disk of metal punched from a long strip rolled for the proper thickness of an intended denomination.It will have a rough edge.(Note: All coins have three sides:the obverse,the reverse and the edge.)
Blanks are not intended to be struck,though they sometimes are.



Definition: A coin blank is the metal disc onto which a coin will be struck. The blank is punched in its round form from a strip of machined coin alloy, and then processed through the upsetting mill, which raises the proto-rims on the blank and turns it into a planchet.

A coin blank that doesn't have the proto-rim used to be called a Type 1 planchet. The planchet was called a Type 2 planchet. Although these terms are rarely used in conversation anymore, you will occasionally see them on grading service holders.

Malaysia .$1.00 1989-1996.Obverse.

Malaysia .$1.00 1989-1996.Reverse.

When referring to ancient coins, or coins made on cast metal discs, the term flan is frequently used instead of blank or planchet.

Malaysia Forgery Parking Meter Tokens A Counterfeit 50 Cents Blank!

In the 90's when Malaysia local town councils start to introduce parking meter to replace parking attendants in town,you have to "feed" the parking meters yourself with coins. Each hour was charged from 30 cents to 50 cents depend on the location.But very soon the smart caveat emptors start to introduce their parking meter tokens.
 
These parking meter tokens were the salesman's  favourite. Due to their nature of work,salesman need to use a lot of coins for "feeding" the parking meter,in order to save cost,they start to buy and use these counterfeit 50 cents coins/blanks.I was told by a ex-sales executive,they were offered RM20 for a pack of 100 pieces 50 cents blanks.You must be smart to use these forgery tokens,when you feed the parking meter with counterfeit coins,always remember the last two pieces must use the genuine 50 Cents coins,because there is "glass window" to check your coins on the parking meter.

Obverse.

Reverse

Same Diameter.

Plain Edge

Different In Thicknes

Composition: Steel metal,attracted to magnets.(Normal coin: Copper-nickel)
Weight :+-9.00gm.(Normal 50 Cents coin: 9.33gm)
Diameter: 28.00mm (Normal 50 Cents coin: 27.76mm)
Thickness: 1.90mm (Normal 50 Cents coin:2.18mm)

Today,our parking meters are much more smarter,they only "eat" the genuine coins!