Ran across this package. Wish I had bought this instead of just getting the pictures. It's different from the usual batch seen in this packaging.
This is 1970's or later packaging, if I understand correctly. But check out the rainbow style marbles. Not all perfectly classic rainbows but still that general style. And some black widows, which I think are 1960's marbles. A couple of all-red looking patches. .... and maybe one Peltier Rainbo.