3.7 inch Mk 2 Anti Aircraft Gun on Mark 3 Carriage

The 3.7 inch Anti Aircraft gun Mark 2 ordnance on Mark 3 chasis is a mobile, purpose built weapons platform. The weapon features a four wheel, towed platform for transportation. In the firing position the chasis is lowered to the ground and supported by four outriggers with pads which level the gun into the correct firing position. In the firing position the ordnance has 360 degree rotation and 80 degrees elevation. The gun has a semi-automatic, horizontal sliding breech block and employs an autofrettaged barrel featuring a loose liner jacket. The gun comes equipped with automated receiver elevation and azimuth controls. The weapon is painted gloss olive green.

1) Written on plaque front axle:

LIM TRANS
3.7 AA EQUIP MK 2
VICKERS ARMSTRONG
MADE BY GENELCO LTD
EXD AT CANADA
WT FRONT AXLES TONS 1; CWTS 2; QRS 1; LBS 8
WITH WHEELS AND STEERING GEAR
REG NO 6185

2) Written on side plaque on right side of gun cradle:

LIM TRANS
3.7 INCH AA MK 2
RCD 1942
REG NO 4282



3) Written on breech block markings:

AN 24315
QF 3.7 . 11 & 111
RGF 1 1942
(BROAD ARROW CROWN & CYPHER)

4) Written on plaque on rear axle:

CARR TRANS
3.7 AA EQUIP MK 2
VICKERS ARMSTRONG PATTERN
MADE BY GENELCO LTD
EXD AT CANADA
WT REAR AXLE TONS 0; CWTS 15; QRS 0; LBS 20
WITH WHEELS & LIFTING GEAR
REG NO 8444

5) Written on plaque on receiver:

RECEIVER ELEVATION
NO 3 MK III
GEL REG NO 5004
GS N6 SA 1941

6) Written on plaque on left hand side of cradle:

THIS 3.7 INCH GUN WAS RESTORED BY 2ND BASE WKSP BN
RAEME IN CONJUNCTION WITH BNS ENGINEERING CO PTY LTD 1981

7) Written on fuze receiver:

RECEIVER FUZE
NO3 MK 1
GEC OS 4/96A 1942
REG NO 4320
(BROAD ARROW CYPHER)

8) Written on barrel markings on muzzle:

BARREL NO L 12622
ROF HN/1941 MK 1

9) Written on breech of barrel

RGF 26873

The 3.7 inch antiaircraft gun was the standard heavy antiaircraft defence gun of British and Commonwealth forces during World War II.