Definitely the largest "coin" I've ever discovered. Although, it's a bit hard to even define this as a "coin"... seeing as there's not too many coins that are big enough to bludgeon someone to death with 😛. I was quite perplexed at how this one worked until OHMIC showed me the correct way to spin things. Very interesting. I wouldn't mind one for myself, since the only constellations I can recognize are the big and little dippers, and Orion 😛.
Although, a printed star chart might be a bit lighter to work with than this slab of iron 😛.