1942 Carl Lange Stereoscopic Opthomological "Coordinator" Slides - Set 5 Romany Sparta U.S. Tile Company The wood is in excellent

The wood is in excellent condition

evoking planes

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

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

1942 Carl Lange Stereoscopic Opthomological "Coordinator" Slides - Set 5 Romany Sparta U.S. Tile Company The wood is in excellentI 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