Well done, bri.
Sorry for getting BP 6 and BP 9 confused, although clearly the 9 was developed from the 6.
The replica is in the little-known (and rarely open) Boulton Paul museum in Wolverhampton (
http://www.boultonpaul.com)
My pictures came from here:
Mili Blog | military items | military vehicles | military trucks |Military Badge Collection Museum Visits - Boulton Paul Heritage Project Open Day 19 April 2009
AB, what VX275 was referring to is the armrest which looks suspiciously like the powder-coated arm of a modern stacking chair. This is even clearer in another cockpit photo on the Boulton Paul website.
bri, you have control.