I have a full set of 50 First Day Covers for the 1976 US State Flags issue. They are a well-made commercial product. My question is what company made them?
There is no company name on the covers themselves and they came to be in a box with not identifying information. I have found a few listed on eBay
, but with no identification of the maker.
One clue might be in the upper left corner of each cover, where there a small line drawing of a lion:
If anyone knows the maker of these covers, I would appreciate their telling us.