PH1978:0110:006
ca. 1875
photographs
PH1980:0272:046
architecture, engineering
late 1860s
photographs
late 1860s
architecture, engineering
photographs
PH1987:1189:005
architecture
1868
photographs
1868
architecture
photographs
PH1987:1189:007
1868
photographs
1868
photographs
PH1985:0629:008
September 1884
photographs
September 1884
textual records
ARCH255644
Description:
presentation proposal
The Hanging Arc Bridge: our recommended structure
Actions:
ARCH255644
Description:
presentation proposal
textual records
drawings
ARCH219577
photographs
PH1979:0286:097
photographs
textual records
AP175.S1.014
1992-1995
textual records
1992-1995
textual records
AP175.S1.033
1992-1994
textual records
1992-1994