Marc Chevalier
Gone Home
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- 18,192
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- Los Feliz, Los Angeles, California
Canadave said:Someone must know this answer...
In the 1920s and '30s, a type of cardboard was most often used.
Believe it or not, vulcanized rubber was another material used from time to time. I have one '30s cap whose brim stinks of rubber: always has and always will.
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