Interesting combination of components: Campagnolo cottered crank, Campagnolo front derailleur (either Valentino or Grand Sport), Universal (I think) brakes, Campy Grand Sport levers, Simplex Prestige

rear derailleur?
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Syke
“No one in this world, so far as I know — and I have searched the records for years, and employed agents to help me — has ever lost money by underestimating the intelligence of the great masses of the plain people. Nor has anyone ever lost public office thereby.”
H.L. Mencken, (1926)