Identification Tips On Contemporary Counterfeit George III Half Crowns

Sorry for not contributing earlier. I have seen quite a few contemporary forgeries of early 19th century silver coins, but never got into collecting them or studying them, so little from personal experience to contribute.

I have dug out the website I was pointed to when I last had a query on one of these - I hope this helps:
http://www.steppeulvene.com/index.george_iii.html

The author of that website, as you might expect, is massively into contemporary counterfeits. I know he contributes to several coin fora - not sure if he comes to this one. Would be worth dropping him a line.

"Contemporary counterfeits in Mexican numismatics which tend to have more monetary value than a genuine coin."

Indeed... but long story short, generally not the case with these plentiful 1800s George III types (BOE dollars/tokens, 6d, shillings, halfcrowns).

It's only on the earlier halfpence types, which of course have overlapping interest from the American Colonial collectors, where the prices for interesting material can be strong (the interesting 1773 halfpenny someone just posted here would be an example).