You are buying a vintage Viking Grand Prix Professional.

Nice Red and white finish.  Beautiful lug work.  Not sure on the exact date of manufacture however this is a Lambert built Viking model after Viking was purchased by Lambert in 1972 and production was moved to Wolverhampton, England.  Color and Component spec are nearly identical to a 1972 advertisement for Viking Cycles.  The steel frame is constructed of "1027 Alloy Steel used in most jet aircraft this special drawn tubing is made to British standard aircraft to spec NO 3T50 and American aircraft spec no Mil-T-6736A.  This ultralight tubing contains -manganese-silicon-molybdenum-chromium-carbon-sulphur-phosphorus."

"Handcrafted by Viking England"

Measurements:

57cm top tube (center to center)

56cm seat tube (center to center)

Specifications:

Uncertain of Seat Post manufacturer as it appears to be frozen in place.

SR Quill Stem (70mm)

Lambert of England Type Professional Handlebar (40cm center to center).

Lambert Brake Levers and Calipers.

Lambert Shift Levers.

Lambert Front Derailleur.

Suntour GT Rear Derailleur.

5 Speed Freewheel.

SR Apex/Lambert Crankset (170mm).

Lambert Hubs Laced to Mavic Sport Tubular Rims.

Rear Tubular tire is shot and will need replacement.

Bicycle will need a full tune and some repairs before being rideable.

Serial #84421 

Reference #84421-930