16 résultats pour : proving ground
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HRM24A30_023
Aiming 14" gun -- Sandy Hook, between c1910 and c1...
HRM24A35_122
The Explorations at Jerusalem: Robinson's Arch, Ha...
HRM24A21_345
Entrance to proving ground, Sandy Hook, between c1...
HRM24A14_018
British tank on 5th Ave., 25 Oct 1917. Creator: Ba...
HRM22B30_379
Navy Yard, U.S., Washington - 14 Inch Guns, Ready ...
HRM22B30_378
Navy Yard, U.S., Washington - 14 Inch Guns, Ready ...
HRM22B30_127
Indian Head, Md. Navy Proving Ground, 1916.
HRM22B30_377
Navy Yard, U.S., Washington - 14 Inch Guns, Ready ...
HRM22B30_126
Indian Head, Md. Navy Proving Ground - Residence o...
HRM22B30_125
Indian Head, Md. Navy Proving Ground - Residence o...
HRM22B30_124
Indian Head, Md. Navy Proving Ground - Residence o...
HRM22B30_123
Indian Head, Md. Navy Proving Ground - Residence o...
HRM22B30_122
Indian Head, Md. Navy Proving Ground - Residence o...
HRM21A89_018
Nozzle, Rocket. Solid Fuel, R.H. Goddard, 1918. Cr...
HRM21A89_022
Rocket, Solid Fuel, Smokeless Powder, R.H. Goddard...
HRM19A82_334