Gino Bartali at the 1948 Tour de France

July 17th, 1948 was a rest day for the Tour de France. Gino Bartali had just won two consecutive mountain stages and taken the maillot jaune from Louison Bobet. Bartali broke away on stage 13, from Cannes to Briançon, beating 2nd place Briek Schotte by 6'18". On stage 14, from Briançon to Aix-les-Baines, Bartali broke away again, finishing alone 5'53 ahead of Stan Ockers. And the day after the rest day, on stage 15 from Aix-les-Baines to Lausanne, Bartali would again finish alone, 1'47" ahead of Briek Schotte. Three mountain stages and three solo wins had moved Bartali from 2nd place on the G.C., 1'06" behind Louison Bobet, to the yellow jersey, 13'47" ahead of Bobet. On stage 16 Bobet lost an additional 21'20" to Bartali, who now lead 2nd-placed Schotte by 32' 20".

Note the cambio corsa shifter, single chainring, low saddle/large framesize, different color of headtube (is this the green and red bike?), rear-facing thorn catchers, and 8-panel cycling cap with small bill.