RAF WW2 radio lead plugs and sockets

I’m hoping someone out there can explain the correct combinations of parts used for the gunner’s radio lead in WW2 RAF bomber turrets.

I’m working on the B&P Type C for a Hudson but I guess the various FNs would have been the same.

The circuit diagram in the manual shows a 4-wire Mic/telephone jack.

I have some lead sets which are a 10H/735 plug into a 10H/2206 socket (the 6 is a bit indistinct but I’m pretty sure it isn’t a 5 nor a B). The other end of these leads has another smaller socket 10H/18574 on it.

I have an RAAF, not RAF, manual of standard parts and can find none of the above parts in it. The closest I can come is a 10H/625 “Socket, telephone” which is depicted with a 4-wire lead. I can’t find any plug remotely resembling the 10H/735.

Any explanations would be most gratefully received, especially any pix showing how the sockets were mounted in the turrets.

tia