Hi I am new on this forum but not so much in age. Making enough posts to get photo load access. Anyway purchased a lovely one owner 1976 Holdsworth 531 Special in blue from Christchurch. Initially got hooked on the flash lugs. It was modernised in the 90's with RX100 stuff and has been well looked after. Have just recently stripped and rebuilt with older Shimano stuff and some nice Gentleman tubulars. Has an original Brooks seat. Will post photo when able. Anyway have had several rides on it and it is truly magnificent. Taught, quick and very comfortable. Actually quite a handsome bike.