Royal Signals Museum
SG: FS1d,2d,3cb,3ea,5d,5ga?
Scott:
Machin Royal Corps of Signals + Jimmy Logo, 1st - W/Wide 100g: NO YEAR CODE (BK18,P6)
SG: FS77b,78b,79bb,80ca,82b,84ca
Scott:
Machin Royal Corps of Signals + Jimmy Logo, 1st - W/Wide 100g: MA13 (BK18,P18)