from the ebay listing for this bike:
VINTAGE JACK TAYLOR TANDEM 531 REYNOLDS TUBING. 58CM FRONT 48CM BACK. CAMPY CRANKS & SHIFTERS,MAFAC BRAKES,MATHEHOUSER BRAKE SHOES,PHIL WOOD HUBS,WHEELS & PEDALS,WEINMANN WHEELS W/48 SPOKES,CINELLI HANDLEBAR,BROOKS SADDLE,CUSTOM RACKS,LIGHT W/GENERATOR. ALL ORIGINAL EQUIPMENT.