Battery AMTB - Galveston Seawall (1943-1946) - Battery AMTB - Galveston Seawall was a reinforced concrete, World War II 90mm coastal gun battery on Fort San Jacinto, Galveston County, Texas. Battery construction started 2 Dec 1942, was completed 2 Apr 1943 and transferred to the Coast Artillery for use 4 Aug 1943 at a cost of $ 17,039.16. Deactivated in 1946.
Originally built as a World War II coastal gun battery with four 90mm M1 guns, two mounted on T-3 fixed carriages and two mounted on mobile M1A1 carriages.
From FM 4-91:
"This weapon consists of the 90-mm gun M1 and top carriage M1A1 on the 90-mm gun mount M3. The mount M3 is of the turret type, the shielding being constructed of boiler plates. This boiler plate shield provide fragmentation protection only. No shielding is provided at the rear due to the requirements for service of the piece. A sighting port in the shielding in front permits sighting in direction by the gun pointer."
References:
FM 4-91 - 90-MM Gun, Fixed Mount Service of the Piece
FM 4-126 - Antiaircraft Artillery, Service of the Piece, 90-mm Antiaircraft Gun
TM 9-373 - 90-mm Gun M1 and 90-mm Gun Mount T3 (M3)
Source: RCW Form 1, 1 Jun 1945, Coast Defense Study Group, Berhow, Mark A. ed, American Seacoast Defenses: A Reference Guide, 2nd Edition, CDSG Press, McLean, VA, 2004, ISBN 0-9748167-0-1, pages .....
