1942 Carl Lange Stereoscopic Opthomological "Coordinator" Slides - Set 5 Romany Sparta U.S. Tile Company 8 3/4" l x 6

8 3/4" l x 6 1/8" t x 1" wide at base

and I find the whole thing

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

1942 Carl Lange Stereoscopic Opthomological "Coordinator" Slides - Set 5 Romany Sparta U.S. Tile Company 8 3/4" l x 6I 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