00-0257-26
Keck Observatory under construction
00-0257-21
Keck Observatory under construction
00-0257-19
Keck Observatory under construction
00-0257-17
Keck Observatory under construction
00-0257-16
Keck Observatory under construction
00-0257-12
Keck Observatory under construction
00-0257-10
Keck Observatory under construction
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Construction of the Auditorium in the Chapel-Music-Speech Building, 1950-1951