1951 Triumph 6T Thunderbird for sale on BaT Auctions - sold for $19,500 on August 31, 2020 (Lot #35,757) | Bring a Trailer
1960 Triumph 6T Thunderbird 650cc Here is a nice example of the famous Triumph Thunderbird. All iron 650cc engine, alternator / coil ignition. Charging OK. Good starter and good runner , sounds
1957 Triumph Thunderbird T6 650cc - webBikeWorld
1950 Triumph Thunderbird - webBikeWorld
51 Triumph T-Bird 650 6T Has Brando Style and British Innovation - eBay Motors Blog