South African No.4's ?

[FlightRN]

Good Day All,
I purchased my Longbranch No4 Mk1* South African target rifle rifle when I was stationed in the UK in 2011. The trade dealer had recently brought it in directly from the family that owned it South Africa since the late 1950's. It sports a D.O.W 59 5C rear sight and is serialized with the production number "YW". The 6-hole eyepiece is also marked DOW
The rifle was made in 1942 but later was center bedded and has a South African barrel dated 7 64. The receiver bridge is marked with the Union of South Africa property mark, but there is no "sold out of service" style marking. Besides the barrel and target sight, the other rifle parts appear to be of Longbranch manufacture.
Regards,
Michael