Set of 11 with box: vintage Domglas Gem jar glass lid inserts

Set of 11 with box: vintage Domglas Gem jar glass lid inserts. These lids are part of a three-part system along with rubber seal rings and metal screw-on rings. Made by the Dominion Glass Co of Canada. One has some rough spots on the edge if you run your finger along it, but the rest are in unused condition with no chips or cracks. They will be packaged VERY carefully to avoid damage.