I have inherited
a set of "American Revolution Bicentennial First Day Cover Collection" stamps. These appear to have been produced by the Franklin Mint in 1976.
I have at least 12 so far. Issues appear to come from Mexico, the Dominican Republic, Bali, and others. Only one set was opened. I opened a second envelope containing four more, just because I wasn't sure what was in it. There are several more envelopes that are unopened. All of these are in new condition.
I've included photos of a few examples.
I'm finding little or no reference to them anywhere online. Is anyone familiar with these?