Got this cover in a dollar box because the "America Uber Bremen Franco" intrigued me. I showed it to a dealer friend and he said oh must've been on the Bremen--but that ship that I believe he was referring to didn't come into being until the 1920s. What does this handstamp mean and is this cover, in your educated opinions, worth a buck? Also, what are the back handstamps with the numbers? Receiving marks for Berlin or Hamburg or Bremen or something of the like?
I see it in some auction results but what bothers me is they never tell what it means! I don't care what a similar one sold for, I'd like to know WHY it sold for that and what a collector looks for. Teach me more niche stuff c'mon