Thank you! Very very helpful!From a post on Milsurps by ex-Armourer Peter Laidler:
"It was made later in the last War and was used as the coaxial machine gun telescope for the BESA MG on the Mk7 and 8 Churchill gun tank and the early Mk1 Centurions that also had BESA's."
He goes on to mention that some of the parts can be used as spares for the No.32.
Hey, I never said that!I guess Disaster Dog does not need one for his Churchill tank.