1942 Carl Lange Stereoscopic Opthomological "Coordinator" Slides - Set 5 Romany Sparta U.S. Tile Company 3” diameter

3” diameter

On its 32 sides are the spelled out numbers 1-10 and pictures representing each letter of the alphabet

Thin in places and thick in others

part of what really makes it is the layering and overlapping of forms and colors

1942 Carl Lange Stereoscopic Opthomological "Coordinator" Slides - Set 5 Romany Sparta U.S. Tile Company 3” diameterI was pretty excited to find a box full of these handmade slides at the flea market this weekend a box in which many were rolled up in newspaper from 1945, seemingly untouched since then! What I've learned is that Carl W. Lange Sr. and Jr. , who copyrighted this set of stereoscopic slides in 1942, were father and son opthomologists with a practice near St. Louis and a particular commitment to curing myopia (nearsightedness.) They wrote and travelled