Mechanical Interlocking Machine in office at Point of Rocks, Wyo., /  for Operating Switches and Signals at the End of Double Track, tinted
name: label: Collection Creator
content: Archives Center, National Museum of American History
setName: label: See more items in
content: Archives Center Lantern Slide Collection
label: See more items in
content: Archives Center Lantern Slide Collection / Series 1: Lantern Slides
container: label: Container
content: Box 2, Item 48
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials
label: Type
content: Photographs