For your consideration, here is a Glass Magic Lantern Slide Various Medieval Medical Tools Illustration, from Uranus Hord. It has printed on one side: URANUS HORD, FINE LANTERN SLIDES, Cincinnati, O.

It has a little wear on it. There a bit of greyness. I think it is part of the illustration. It measures 3 1/4 by 4 inches. Item pictured is the actual item up for sale and comes from a non-smoking household. (200.747k-.9sb)