25 Air-Tite "H" Black Ring Coin Holders for 30mm Coins Air-Tite Holders with Black Rings for Modern Half Dollars 1837 to present or $10 Gold 1795 to 1804 (30mm) The outside diameter of the "H" holder is 1.75" (44.45mm) Each order is for 25 "H" holders and black rings, bagged separately without any additional packaging