COA # will vary as multiple coins are available. In Original mint condition. Mintage 1993 coins worldwide. Any such charges are the responsibility of the. The perfect Halloween/Christmas gift is Tim Burton’s Nightmare Before Christmas. Jack Skellington’s head is in 1 oz silver with he and Sally set in the eye sockets. This unique and low mintage coin is the perfect addition to any collection! Contains 1 oz of. Each coin is antiqued and engraved and comes in special Nightmare Before Christmas themed packaging. Mintage of only 1,993 pieces. Obverse: Depicts the head of Jack Skellington with he and Sally engraved into the eye sockets. Reverse: Features the Niue coat of arms along with weight, purity, denomination and year. Sovereign coin backed by the Niue government.