Category:90mm Rifle M1

The above photos were taken at Fort Monroe, Battery Parrott

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)