Canberra question

I watched a programme on “you tube”(Workhorse)about the Canberra ,it was filmed around the 40th anniversary of it coming into service.My question is ,at the beginning there was a canberrs that was being auctioned and there were glimpse of it,on the tail was a kind of “speedbird”insignia and the reg number was WH935.Was this machine from the school of tech training at St Athan?I was a boy entrant back in 1958 and remember a Canberra used by armourers with the same insignia.