Restricted: lantern slides not available for public viewing.
Description
2018-0884. Shows Southern Pacific Lines, SP-0-4900 pulling Detector Car, SP-0-1000. "05/90" -- handwritten on cover glass. Black paper mask, cover glass and taped edges. Online image only, no photographic print available. Restricted: lantern slides not available for public viewing. Rail detector cars developed jointly by the American Railway Association and the Sperry Co. in 1926. Designed to detect hidden flaws in rails.
Type
image
Format
Projected Slide Photographs. Projected graphic Projected medium
Extent
1 slide : lantern, black and white ; 3 1/4 x 4 in.
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