Happy Birthday DH82A. Of course, the DH82 was an evolutionary development of the DH60T with the inverted Gipsy III engine, the first 8 were designated DH60T. So really the Moth is 81 and a half and still going strong.
Also not forgetting that the first Tiger Moth was the DH71, a pretty and very small monoplane racer which was first flown in 1927.