[20] Laboratory B
name: label: Collection Sponsor
content: United States. Department of Agriculture
setName: label: See more items in
content: United States Department of Agriculture Building Construction Glass Plate Negatives
label: See more items in
content: United States Department of Agriculture Building Construction Glass Plate Negatives / Series 1: Glass Plate Negatives
unitdate: label: Date
content: undated
container: label: Container
content: Box 2
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials