Hallmark issued Batman-themed Valentine’s Day cards in 1966 — strangely, the same year Doubl Glo released a similar set. Could you imagine two companies getting the license to manufacture the same item for the same market today?
I think these Hallmark cards are kinda lame, so perhaps National Periodical Publications (DC Comics) was unsatisfied and went to Doubl Glo? Or maybe it was simply a case of no one paying much attention to merchandising and licensing back in those days? After all, it wasn’t until Star Wars came along in 1977 that licensed merchandise became a cash cow. In 1966, NPP was probably just happy to get a check in the mail!
These great images were also compiled by Chicago cartoonist Mark Anderson, who put them on his website.