I ran across this article in October, 1931 edition of Poplar Science titled: "Wonder Photos Reveal Unsuspected Facts About Razor Blades and Shaving" http://blog.modernmechanix.com/wond...ades&Qif=razor_blades_0.jpg&Qiv=thumbs&Qis=XL
Article is partly about the microphotography techniques and partly about blades, straights, and stropping.
Hope you enjoy.
Article is partly about the microphotography techniques and partly about blades, straights, and stropping.
Hope you enjoy.