Dating vintage buttons
1930s-1940s: Bakelite buttons are plastic buttons found on 1930s and 1940s garments.Bakelite was invented in 1909 as the first ever synthetic plastic.A zipper in the ’30s would most likely be found along the side seam and is always metal.
These collaborators provided reviews, comments or other support including images or buttons for the examples shown.
Luscomb - The Collector's Encyclopedia of Buttons, 6th edition - 2006, Schiffer Publishing Ltd.
I wrote about eight easy ways to identify your garment as vintage, which helped you to recognize whether that great maxi dress you thrifted was actually from the ’70s or was just a 2012 lookalike.
You know a button is bakelite plastic versus a more modern synthetic plastic because it’s almost always colored.
Test a button’s bakelite authenticity by spraying a Q-tip with 409 cleaner and rubbing it against the button. 1950s: If the button is clear, you’re most likely looking at lucite, a transparent type of plastic invented in 1931.