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Pre-war first grade tires (1943)
(lemmy.world)
For sharing images of vintage magazine ads, fliers, promos, etc.
We're going to play it pretty loose with timeframe here so please don't get offended anyone :)
Yes, it must be something like that. Similar to ersatz coffee where I believe the Nazis resorted to using acorns instead of coffee beans. https://en.m.wikipedia.org/wiki/Coffee_substitute
This article talks about the problems of sourcing rubber as a raw material and the solutions - https://historycrumbs.com/retreading-tires-the-armys-ingenious-solution-to-rubber-shortages/