PS,
The pump looks very much like the transfer pump (or one of them) that were used in the Avro Shackleton, I seem to remember we scrapped about 400 fuels pumps from a batch I purchased from the MOD sales in 1995, and some looked like that, and from memory it was described as "Transfer pump Fuel" then the part no and job number and requisition number all were etched into every piece that would detach or could be screwed or unbolted from the main body.
Vfr
