GDJMSP, Sorry no photos available. It's at a local coin shop and its listed at $225. It's not as bright as your 1757/6, but the strike is as good or maybe a little better and has nice background toning. Sounds like it may be worth going to the old piggy bank.
Nope, that's a different coin altogether. The rijksdaalder is a common name given to the 2 1/2 guilders. This coin is known as a ducaton.