I have brochures for 3 1976 Viscount models. The "Professional" is scanned and on Mark Bulgier's website. The Grand Touring is listed as 27 lb and cost $149. Fillet-brazed chrome-moly frame with steel rims and Suntour/SR components. The Sebring is listed as 28 lb and $139. Lugged steel frame w/SR and Shimano components. Yamaha was the distributor.
David Bean
Arlington, MA USA
beandk at are-see-enn dot com