I presume you mean a zinc lid with a milk glass insert. Perhaps you just have the milk glass inserts.
It's helpful to post a photo or be specific about embossing. Lids/inserts with patent dates can be valuable, midget jar lids are valuable. Plain lids without markings sell cheaply by the dozen on ebay.
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It's helpful to post a photo or be specific about embossing. Lids/inserts with patent dates can be valuable, midget jar lids are valuable. Plain lids without markings sell cheaply by the dozen on ebay.