Visiting Members of the Union League to the Torresdale Filtration Plant
name: label: Collection Engineer
content: Hering, Rudolph, 1847-1923
setName: label: See more items in
content: Rudolph Hering Collection
label: See more items in
content: Rudolph Hering Collection / Series 1: United States Publications / Pennsylvania, Philadelphia
unitdate: label: Date
content: March 1914
container: label: Container
content: Box 10, Folder 8
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials