from the ebay listing for this bike:
Up for auction a very nice 1977 Jack Taylor tandem frame and fork. This is an unrestored frameset. The paint and decals are in very good condition with only a few minor chips. Most of the paint chips could be easily touched up. The frame is straight without any dents or rust. Campagnolo rear dropouts and double butted Reynolds 531 tubing. This frame has internal wire routing for a light set. The frame measures 22 inches up front from the center of the BB to the top of the seat collar. The rear measures 20.25 inches. The wheelbase is 166 cm. The rear dropouts are spaced at 140 mm.