Lantern slides.
Subject
Subject Source: Art & Architecture Thesaurus
Scope Note: Transparent positive images made or mounted on glass for projection, usually but not necessarily photographic, measuring 3 1/4 to 3 1/2 by 4 inches for projection onto a screen by means of a specialized projector.
Found in 3 Collections and/or Records:
Small collections of correspondence and papers of and to members of the Haldane family.
Series
Identifier: MS.20260 (Part 1)-(Part 2)
Dates:
[Circa 1735]-1948, undated.