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.
Fair enough.
I’ll let you know what happens if I am able to try this with a vise.