Vintage Glass Lantern Slide - Astronomy Planet Venus in UV Light 1907:
For sale is this glass projection slide. Slide consists of two layers of thin glass, one of the glasses has a positive photographic emulsion layer. The other glass protects that layer. My guess is it was used for projection during a lecture.
Subject shows three images of planet Venus in ultraviolet, images are dated June 6th, 24th, and 26th 1907.
Slide measures 4 X 3-1/4 inches in size. It is bound in cloth tape, glass is free of any damage or cracks.
First two pictures show front and back of slide, third picture shows image on slide taken with a flat-bed scanner. I offer an unconditional money-back guarantee, if you don't like your item just send it back and I will refund. I ship next business day or same business day, I upload tracking numbers to eBay and Paypal as soon as I ship. Everything is packed very securely in clean new boxes with new packing material. On items without free shipping and items sent outside the US - you are paying actual postage costs only. I do not pad the shipping price. All paper items are also boxed in corrugated rigid board mailers. Everything is sent with Delivery Confirmation (where available). Signature confirmation is used on anything over $250.00. I only ship to your... read more