Thank you Peter! I now will be having strange dreams of air crews carrying cases of bomb sights and No.4 Mk1(T)s to their Halifax bombers for a run over the fourth reich. Deflection shots with a No.4 from a Defiant would be quite a challenge. I agree that a TO&E chart for RAF ground security would be most interesting. I shudder to think of what they did with the bayonet. best, p.