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1921 - 1930 Columbia Model 48 2 seated tandem bike. Male / Female Design Front seat says Troxel, Elyria, OH and the rear seat says Mesinger, Pat May 18 1926, B-600 Fire engine red in color, but repainted. Appears to be a darker blue paint underneath. Steering from back or front seat possible, bar connects from rear to front to enable steering from either position. I am know for a fact the bike is not all original, but I am not sure how much has been modified. Tire size: 26 x 2.125 front and rear Silver fenders. Plaque on front of bike says: Model 48 / Columbia / Pope Mfg. Co.