I imagine it takes much more pressure with the high cotton paper. I have pretty good hand strength. That might be enough.
A bench vise would probably do the trick too. Rubber cement the coin to one jaw, rubber cement a hard rubber disk the same size as the coin to the other jaw.
Coin stores have a very wide variety of samples. I would speculate that one would only need to visit a few before finding one. But that is just an untested guess.
Or in a major metropolitan area there are probably currency exchanges available at the airport.
I might have to try that this weekend since I'll be up near the airport for my not terribly major metropolitan area.
Well, according to post #627, that Kenyan two shilling coin is from 1937, and they had already altered the design by 1957. So good luck with finding one at the airport currency exchange.
OK - I just do not think it is obvious that the coin method would be able to reproduce what is seen on the Orly document, or any embossed seal. A paper embosser I believe will always produce more defined height variations.
The diameter of a British two shilling piece is listed as 28.52mm or around 1.123 inches. So the size is about correct but could be on the low side.
If the forger just wanted to generate a photograph image then I think using Photoshop tools would have been easier. JMO.