Numismatic Puzzle: Mining

The piece of today’s puzzle comes from a Künker auction:

Henneberg. Reichstaler 1698, yield from the mines of Ilmenau. From the Salton Collection. Rare. Showpiece. About FDC. From Auction Künker 379 (2023), lot 19. Hammer price: 6,500 euros.

Have fun with the puzzle!