This lot contains a nice selection of forty (40) American 16 size and 18 size “THICK BEVELED” glass crystals. These are labeled glass new old stock pocket watch Crystals. These are the thick glass crystals everyone is looking for. Most are 43 MM OD to 47 MM OD and are strictly for 16 size and 18 size pocket watch cases. Just the use of a single crystal can save a future repair period. These are the desirable sizes everyone is looking for. All are new old stock and have never been on a watch. Most have good labels.