The box provides ACTIVE protection against tarnishing. Each box is equipped with INTERCEPT TECHNOLOGY material which purifies the atmosphere inside the box. The boxes are archival quality and suitable for storage and preservation of coins made of cooper, bronze, silver or gold.

Optimum protection for official US Mint proof sets in original plastic lens. Holds up to 24 proof sets, depending on number of lenses in the annual set.

Overall size: 10 3/4 x 5 3/4 x 3 5/8" (273 x 146 x 92mm).