These postcards are the later versions of what were called "Rally Cards," which were sent out to religious school children to goad them into attending Sunday school. I have lots of them going all the way back to the early 1900's, but these more recent ones, probably from the 1960's, are good examples of the chrome variety. If the dogs and the bees are attending Sunday School, can't you at least show up too?
KEEP 'EM FLYING
15 hours ago