I found these dice at the cabin in Fox Lake last September. They were inside a big box that contained about twenty decks of playing cards and a card shuffler. I don't know many card games, but I can give the dice a good home.
I doubt they've been out of the jar in thirty years. ;) I can sort of picture the family playing cards by the lake in the summer or on the sun porch on a rainy day.
I might have to use these dice to roll up a retro HackMaster PC. ;)
Edit: Now that I think about it, some of these dice were probably rolled in the 1940's...maybe earlier. Cool...