Many 1950s-era pinups are photographed on Ektachrome and Anscochrome, two films that are prone to fading and color shifting.
Vintage Pinup 1950's - The Kamera Club
Hilda Pinup Naked Nude Remastered Voluptuous Pin-up Prime
Vintage Nude Pinup (c. 1950s) - Porn video
Vintage 1950 Porn Pics: Free Classic Nudes — Vintage Cuties
Nude Women of the 1950s - Restoring Pinups, Not Pornography
Betty Queen Of Pinups Page, The Harlem Years, 1949 - 1959
Nude Pinup Model Pixel Art 175 - gdfs
Vintage Nude Pinup (c. 1950s) - PornZog Free Porn Clips
Bettie Page Reveals All' tells the story behind the pinups
Vintage 1950 Porn Pics: Free Classic Nudes — Vintage Cuties
Retro pin-up models from 50's are naked
Nude Women of the 1950s - Restoring Pinups, Not Pornography
Vintage 1950's Nude Pin Up Babe on Bear Skin Rug - Vintage Porn