The only braze-on is that little thing on chainstay.
And the over the BB cable guides. That and the chainstay stop are what I was referring to.
__________________
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