Thornton-Pickard MK 111 cameragun info wanted. "It's also available for exchange".

I have recently acquired a Thornton-Pickard MK 111 H camera gun “the one that looks like a Lewis gun” number 3998. Can anyone tell me what year it was manufactured, as they were made from WW1 onwards, or if anyone might have a spare Lewis gun magazine or sights, as these are missing from my example.

I may be interested in exchanging the camera gun, for suitable WW1 instruments, compasses or cockpit fittings etc “especially those suitable for a Snipe”, eg- WEYMAN HAND PUMP “the round type”, BADIN fuel system parts, JONES VALVES, MK V or MK IV airspeed indicators, RPM gauges, Aldis sight, Control column’s, Rotary engine magneto’s & Oil pumps, 160hp Clerget parts, MK 1 or 1a Boost gauge, Sopwith drawings, Bristol F2b “early type” drawings, RE8 drawings etc etc.

Bob. T