It’s prob­a­bly safe to assume that most peo­ple were intro­duced to 3D images via View-Mas­ter. Intro­duced at the 1939 New York World’s Fair, the hand­held 3D view­er was a very pop­u­lar for­mat that sold lit­er­al­ly bil­lions of prod­ucts from the 1940s right on through the 2000s. Here you’ll find a brief his­to­ry of View-Mas­ter, some images from my col­lec­tion and key con­tent cat­e­gories that may be of inter­est to those look­ing to start or grow their collections.