Approach trestles, Number, 90, 91
name: label: Collection Creator
content: Morison, George S., 1842-1903
setName: label: See more items in
content: George S. Morison Collection
label: See more items in
content: George S. Morison Collection / Series 7: Drawings
unitdate: label: Date
content: undated
container: label: Container
content: Map-folder 89
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials