Home > Browse Dates > ca. 1928
7 results.
Group 4Series I: Individuals and Groups
Group 15Series I: Individuals and Groups
Exterior 14Series II: Buildings and Grounds
Arches and Bridges 8Series II: Buildings and Grounds
General 12Series II: Buildings and Grounds
Informal 2:3091 (2013-082)Series VI: Yerkes Observatory
Main Observatory 18:1972 (2008-003)Series VI: Yerkes Observatory
