Octagonal Countermarked Dollars George III

[numismatist]

In the 1970 period, these were quite rare to find, and Seabys , Spinks, Baldwins etc, would always avoid those with weak countermarks, saying even in those early days there were many fakes about. Nowadays I'm seeing them all the time on Ebay, generally always very weakly struck Countermarks. Are the multitude that are coming onto the market genuine ? They are often well over £1000.00 or more (2 examples below)

[Peter]

It is a dodgy area to collect and easily counterfeit.

One for the brave boys who can afford to lose £1k

[seuk]

One would need much better pictures.

The genuine counterstamp has the same bust as the Maundy penny. At least that should help identifying the poor counterfeits of which some are likely to be contemporary.