Ad – 1938: Rand Hair Growth Published on March 8, 2021 Posted in: Invention & Technology Rand Hair Growth Ad, Modern Mechanix, March 1938, page 15.Click to Read More...
Vintage Ad – 1945: Free Slide Rule Published on March 10, 2022 Posted in: Invention & Technology Free Slide Rule Ad, Crack Detective Stories, September 1945, page 93.Click to Read More...