Malaysia 3rd Series (M3S) 10 Cents 2013 Coin With Full Brockage Strike Error.
I did mentioned before, with its state of art technology of minting process, the M3S error coins are very difficult to come by. Not to mentioned a major error of M3S coin 10 sen  with a full brocakge strike error.

A brockage occurs when a coin is struck and then sticks to usually the bottom die. Then a new planchet is fed in and struck. The original coin that was stuck then acts as a sort of die and leaves an incuse reverse image on the other side of the second coin.

A brockage error can only occur when there are two coins involved. One of the coins involved will always be a struck coin which has not ejected properly. That struck coin will find its way back between the dies and will be struck next to a blank planchet which was fed into the collar. The image of that first struck coin will be impressed into that side of the blank planchet. The result will be a second coin which has images of the first coin impressed into it. Those images will be pressed into the coin and the image will be in reverse. This incuse sunken image is known as a brockage. The first coin will be left with a flattened  and blurred details. In this case, it was on the reverse of the first coin.
Brockages can be found which are miss-aligned and partial,but full brockages, where the coins are completely overlapping, are the most desirable. The most sought after type are the "full" brockage, where the image is fully centred.


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