Originally Posted by
Lee5159
Its the dumbell shape scope mount
The dumbbell was replaced by the parallel sided rail in 1965, although there were also some half cut versions, according to the Thrale book. It also mentions later Mk 5's having a blued trigger, rather than the polished steel of before.
HTH
Bru
Webley Mk3 x2, Falcon & Junior rifles, HW35x2, AirSporter x2, Gold Star, Meteors x2, Diana 25. SMK B19, Webley Senior, Premier, Hurricane x 2, Tempest, Dan Wesson 8", Crosman 3576, Legends PO8.