Thomas Rawson was asking about Hetchins built with Nervex pro lugs. I am 56 years old and have been cycling since I was 9. Been interested in bikes since 1957. When I was a boy living in London in the late 50's & early 60's was in and out of the Hetchins shop a lot and always window gazing there. We also use to go to Paddington Rec and Herne Hill to see the track racing. Remember seeing quite a few Hetchins straight Nervex pro frames around this time. Can only recollect one curly built with these lugs. Another mecca for boy cyclist's then were the Boys Exhibitions at Earl's court and Olympia, Hultons or Boys Own were two really good shows in those far off days. Loads of cycling exhibits.
Best wishes and be lucky. Michael Butler Huntingdon UK.