from the ebay listing for this bike:
Here is a 1979 Jack Taylor Tandem Bicycle for auction as pictured. Special Jack Taylor Reynolds 531 throughout complete with matching Jack Taylor Front and Rear Racks! Phil Wood 48H hubs and rear brake-Weinmann Concave rims!. TA Crossover Tandem Cranks. Shimano Deore Derailleurs, Suntour Barcon Bar end shifters, Mafac cantilever brakes, Cinelli Old Logo Bars and Stem, KKT pedals, Campagnolo drop-outs and rear seatpost.Concour front saddle, red SKS fenders & h-bar tape. Frame braze-ons galore including pump peg and generator mount. The frame is SEAT TUBE (front) 23" C-T-C & 25" C-T-T (rear) 21" C-T-C & 22" C-T-T -TOP TUBE (front) 22" C-T-C and (rear) 23" C-T-C . Sloping top tube makes it look really tall but I could manage at 5'11" . Serial # 7513