[H?] coal pilot plant
name: label: Collection Donor
content: Heller, Edward L., 1912-2007
setName: label: See more items in
content: Edward L. Heller Papers
label: See more items in
content: Edward L. Heller Papers / Series 4: Photographs
unitdate: label: Date
content: undated
container: label: Container
content: Box 6, Folder 7
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials