Yonks ago I posted a pretty fuzzy image of a strange and virtually unknown Bazooka box back set called Toppscience. Recently a series of eBay auctions and an extended plumbing of the depths of my hard drive offered a better look at the issue and I'm here to share the results:
We already knew there were 24 "experiments" in the series and this is the third one (aka the hard drive image):
A desalinization project? Sign me up! Note too the Parents Magazine seal of approval for the gum.
Here is number 7:
What I like about these newly hammered pieces is that they can now be dated, as the commodity code has come in with far more resolution than I had previously. It ends in a 7, indicating a concept year (and likely retail year) of 1967. It's even clearer in this image of number 19, which reveals 1-197-36-01-7 as the full code: