No.4 Mk1 (T) restoration project

[Roger Payne]

Hope Peter won't mind me chipping in, but the original finish on those lateish Watson Mk2's was blued, though many have been painted (& not always with suncorite as in this case) after the event. You won't generally see a 'W' other than on a Mk3 scope, unless it has been re-worked post war.