Mmm, I didn’t think that would work – oh well ?

Perhaps someone can help me by identifying any of the following:

D/C Eng. O.

O.A.2

Org.3 (Organisation 3)

O.P.2

T.1

I’m now thinking that most, if not all, of these are sections within Bomber Command (possibly at its Headquarters.) As always, any help will be gratefully received. Thanks again. Andrew