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K & M Coin and Currency Supplies

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Slab/Crown Coin Boxes

You may already have your most valuable, certified coins preserved in coin slabs. If not, we suggest contacting one of the premier organizations for grading and slabbing coins, like the Numismatic Guaranty Corporation (NGC) or the Professional Coin Grading Service (PCGS).

Mint and Proof Set Boxes

Our mint set coin boxes are carefully crafted by the best names in the business to make sure your mint sets are stored safely and displayed attractively.