Title: | Dead Union soldier in trench, 14 years old |
Date: | late 1800s |
Material: | Glass, cloth binding |
Dimensions: | 4 x 3¼ in. (102 x 82 mm) |
Company: | T. H. McAllister |
Location: | New York |
Photographic magic lantern slides, also called hyalotypes, were invented in 1849 by William and Frederick Langenheim of Philadelphia. It was the first process for printing a positive photographic image on glass and was used primarily for slides.
