Two men in academic dress
name: label: Collection Collector
content: Swarthmore College. Sproul Observatory (Swarthmore, Pennsylvania: 1916)
label: Collection Creator
content: Gaustad, John E. (Director, Sproul Observatory)
setName: label: See more items in
content: Sproul Observatory Astronomers Photoprints
container: label: Container
content: Box 1, Item 11
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials
scopecontent: label: Scope and Contents
content: Matted.
label: Scope and Contents
content: Autographed in white ink on photograph: "Peter van de Kamp" and illegible signature, "Swarthmore 6 June 1960"