Illustrated Triumph motorcycle buyer's guide: Model-by-model analysis of post-1945 singles, twins, triples, and specials: Roy H. Bacon: 9780951420409: Amazon.com: Books
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Wayne's Triumph Motorcycles: 1938 Speed Twin and 1983 TSS Bonneville to be auctioned at Bonhams in January 2020 ....
Amazon.com: Illustrated Triumph Motorcycles Buyer's Guide: Model History of All Post-1945 Singles, Twins, Triples, Fours, and Specials (Illustrated Buyer's Guide): 9781855790216: Bacon, Roy: Books
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