Cynicalint and Danny
Thank you for the replies. Sidcot Suit it seems to be.
As Danny says whether it wold keep one warm on a winters night, especially if sitting in the rear-gunners position of a Vickers Wellington is a very moot point, but thanks again. My curiosity has been satisfied.
Meanwhile, among my sister's papers I came across this Victory Day Certificate signed by the king that was issued to school kids in 1946 - i.e. me. Very evocative especially as on the reverse there is a listing of significant WW2 dates.
Not really relevant to this thread, but interesting nevertheless. Copy attached.
WT