Have done a bit of re search based on the info supplied above, the Sunderland had a sliding bomb rack so presumably the bomb control is for that also had an aux engine for pumping the bilges so my best guess is the lever controls that, now just need pics in situ!

Interesting thanks I have few Hawker brackets and they all start with an A followed by a code the text on the bomb bracket looked similar to other Hurricane pieces i have seen particularly on the coolant access panel. but it appears they are Sunderland.

Looks like a BP Defiant I wonder how they have performed as a fixed Gun fighter without the turret ?

This is the source of my questions, I was told it was taken from a German Bomber shot down in the Wellington Somerset area but to me its clearly a British finish. So far the best match seems to be Blenheim MKI it is adjustable but the extra green bracket doesnt appear in the Blenheim pics i have seen. It has a part number of 30699 but no FB visable it may be covered by the paint.