[AndyMa]

Maybe it might be worth re-visiting this thread.
Combining, with the info above with some of my own, we get:

Bristol Blenheim
L9190 53 Sqn

Fairey Battle
K9201 VO-M 98 Sqn
K9202 VO-B 98 Sqn (recorded as such, but I seem to have code as N)
K9218 VO-J 98 Sqn
K9254 218 Sqn
K9327 218 Sqn
K9348 88 Sqn
K9441 88 Sqn
K9452 98 Sqn
L4948 142 Sqn
L5436 QT-F 142 Sqn (only marked F on one side)
L5462 RH-G (or E) 88 Sqn – confirmation of code anyone?
N2150 PH-Y 12 Sqn
P2190 GB-X 105 Sqn
P5238 QT-X 142 Sqn (recorded as such, but photos seem to show it being uncoded?)

Hawker Hurricane
L1757 1 Sqn
L1974 1 Sqn
N2381 LE-X 242 Sqn
P2540 87 Sqn
P2559 17 Sqn (confirmation anyone?) - it was SOC on 1 Jul 40, annotated as missing. Does anyone have any idea of what actually happened to it?
P2959 SD-R 501Sqn (recorded as such, but photos seem to show it being uncoded?)
P3045 1 Sqn –
P3683 242 Sqn
P3779 242 Sqn

Codes highlighted in bold are photo-proven.
Further input very welcome.
Andy