Halfcrown 1921 and 1942 postmint or die crack

[josie]

Any additional info.

[Rob]

Any additional info.

Laminating flans. i.e. they were there when struck.

[josie]

Thanks Rob.

Quite confusing between die crack and lamination.

[Hussulo]

Thanks Rob.

Quite confusing between die crack and lamination.

Laminated flans are when the planchet (blank coin) isn’t perfectly smooth and you have an indent in the planchet. When it is then struck the coin has missing detail (indent). So this error is always displays an indent. You have to watch out for post mint damage.

Die cracks are when from repeated use the dies do literally crack (I think the avarage die produces about 200,000 coins) thus when the planchet is struck, the metal fills these cracks and you are left with a raised detail on the coin.

[josie]

Thank you Hussulo for the info.

Others using die crack for Repunched Date and Repunched Mintmark and the number 200,000 that is for me important.Its somewhat a gauge where you can find a variety and a master die.