With that paint scheme, probably 1980-82, if I recall correctly.
If that's a Reynolds 531 sticker on the seat tube, probably a 6XX or 7XX frame.
Best guess, a 1982 610? Whatever it is, it seems to be a pretty decent one.
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1964 JRJ (Bob Jackson), 1973 Wes Mason, 1974 Raleigh Gran Sport, 1986 Schwinn High Sierra, 2000ish Colian (Colin Laing), 2011 Dick Chafe, 2013 Velo Orange Pass Hunter