Recently we were lucky enough to view the above coin, the first people other than the owner himself to see it “in hand” for about 50 years. About 50 years in fact since the owner of the coin received it…

This coin has been struck through an elliptically clipped fragment of another coin resulting in the typical indented area on the host coin. The indent covers about 40% of the surface area of the obverse of the coin. The fragment…

Struck 4mm off centre this shilling has engaged with the collar die in a very small area of the circumference around IDE of FIDEI of the obverse. Even there the collar engagement was only slight. The flan is quite flat…

Ex Noble Sale 83, Lot 66 (2006) a dodecagonal 1969 50 cent coin struck with two obverse (Machin QE2 portrait) dies in regular medal alignment. It is unusual that it is struck without a 180 degree rotation as double obverse…

Struck completely out of collar and almost perfectly centered. As the coin was not constrained by the collar die as it was struck the metal has flowed radially in all directions resulting in the typical “pancake” like appearance that well…

We posted this error coin up on the Coin Blog’s Facebook page and had a massive response reaching almost 4,000 of our readers so we thought pertinent to include it here as it’s a really stunning and obvious mint error…

As no design elements of the coin design are missing this coin which failed to engage with the collar die correctly must be classified as an uncentered broadstrike. It appears to be a Perth minted coin which is a scarce…

This London minted 1966 20 cent has a detached planchet flaw. The flaw was certainly there when the coin was struck as there is no indication of the design of the coin “flowing” into the missing part of the design.…