Ordnance Department. 9-456. 12-inch seacoast matériel. 12-inch mortar M1890M1. mounted on 12-inch mortar carriage M1896M1 and M1896M2, Oct. 17, 1942; [prepared under direction of chief of ordnance].
Publication Title:
12-inch seacoast matériel. 12-inch mortar M1890M1. mounted on 12-inch mortar carriage M1896M1 and M1896M2, Oct. 17, 1942; [prepared under direction of chief of ordnance].
Display Title:
Ordnance Department. 9-456. 12-inch seacoast matériel. 12-inch mortar M1890M1. mounted on 12-inch mortar carriage M1896M1 and M1896M2, Oct. 17, 1942; [prepared under direction of chief of ordnance].