[maple_leaf_eh]

From my research (describing someone else's posted picture):

'It sounds to me as if it's a bog standard No42 telescope as fitted to Churchill Mk7 and 8 gun tanks. It won't fit a No32 bracket as it's a larger diameter tube and even if you did fit it to a rifle, you'd have to zero it by bending the barrel as there's no adjustment facility. It's worth buying, just for the optical spares. Or if you have one, your Churchill tank.'