Andy Naude
Well-Known Member
Recent acquisitions:
Case Testing Firing Circuits MK N1
4.5 IN MKS 3 - 5 GUNS
N4 1957
SR 119420 CRB 1 / 1974
Case length: 152 mm


GAUGE TESTING PROTRUSION OF NEEDELE QF 4.5" MK 5 GUNS
TO BE USED WITH PUL - LIFTING TOOL OPERATING BREECH MECHANISM IN MARK 5 (3 - 5) GUNS
A 119994225555
AT 361 D.A.S.
N.O.D 2124/137
N1 1954
This item has been made from an 4.7" Mks XII Gun case.
Case length: 102 mm

I would be interested to learn more about how these were used and what the other codes stand for.
Case Testing Firing Circuits MK N1
4.5 IN MKS 3 - 5 GUNS
N4 1957
SR 119420 CRB 1 / 1974
Case length: 152 mm


GAUGE TESTING PROTRUSION OF NEEDELE QF 4.5" MK 5 GUNS
TO BE USED WITH PUL - LIFTING TOOL OPERATING BREECH MECHANISM IN MARK 5 (3 - 5) GUNS
A 119994225555
AT 361 D.A.S.
N.O.D 2124/137
N1 1954
This item has been made from an 4.7" Mks XII Gun case.
Case length: 102 mm

I would be interested to learn more about how these were used and what the other codes stand for.