Numismatic Puzzle: Saxon Steed and Silver Mines

The piece of today’s puzzle comes from the upconibg Künker auction 408:
Brunswick-Lüneburg-Celle. Christian Louis. Löser of 4 reichstalers 1664, Clausthal. From the Preussag Collection Very rare. About extremely fine. Estimate: 10,000 euros.

Have fun with the puzzle!