Fwiw, those PPPs above are starting to look like "tweeners" to me. The transparent patches don't seem very NLR-like. And straighter cut lines are starting to seem "newer". Here's a close up of another example of what seems like a non-stereotypical PPP from a Marblealan auction.
For more PPP examples, and for comparison to the comics above, these PPPs with the cubscout and spidey colors look particularly NLR to me. (box posted by lizzy, it belonged to someone getting her help with appraisal). Some of the comic PPPs are close to these but the range of patch shapes here seem maybe wilder and more "traditionally" misshapen than most of the comic PPP shapes above.
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Here's a box Charles posted. (click to enlarge)
I saw something yesterday in a patent where Sellers Peltier (I think it was) MIGHT have been talking about globby patches as a bad thing. Maybe he didn't like the earlier wilder PPP patch shapes. I need to read that patent closely. I wonder if he thought Akro's patches were superior to Peltier's. Pure and shallow conjecture right now. I have to psych myself up to read the patents. (
some pelt patents are linked here)
Here, by the way, is a bag with rainbo era patches in it. I have ads which might place this bag in the late 30's. I'm presently working on organizing those to see how well the date might be pinned down.
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And here are some more comic PPP's.
This box was listed for sale last year. I have another pic with some of the mibs rotated. I'll try to find that and add it here.
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My best guess right now for the "jewelry box" style of "picture marbles" packaging is 1934 or later, based solely on their part in the "bread for vitality" compaign. And maybe ready to go at the end of 1933, so they could be included in the 1934 campaign if that is the year they were released.
A box like this one from fauxgoddess217 is shown in a circular on p. 139 of AMMM. The one in the flyer has a Cotes Master Loaf marble in it. That ad is where I first saw reference to the "eat bread for vitality" campaign. And 1934 is when that campaign seems to have hit the nation. (another thing to doublecheck) In 1934 there was a "Bread for Vitality" radio program even, and lots of celebrities were involved. Betty Crocker was doing a huge promotion, but looks like small bakeries had "Bread for Vitality" or "Bread Energy for Vitality" ads too. The campaign continued beyond 1934. But last night I left off my search about halfway through 1934. Lost energy. Maybe I need more bread.
My best guess for the most NLR-looking version of peerless patches would be 1933 or earlier. My guess for the most classic-looking NLRs has been 1932 or earlier for a while now. Antoher fuzzy date. Something else I need to pin down my reasoning for.
One last note for now: AMMM says there was a Herbert Hoover for president PPP, so I guess that would have been a 1932 version of marbles done by Angerstein's picture transfer process.
Update: Mike just gave a definitive date. Definitely late 1933 on the picture marbles.
Way Cool!