![Bonhams Cars : Offered from the National Motorcycle Museum Collection, 1951 Triumph 649cc 6T Thunderbird Frame no. 15758NA Engine no. 6T 15758NA Bonhams Cars : Offered from the National Motorcycle Museum Collection, 1951 Triumph 649cc 6T Thunderbird Frame no. 15758NA Engine no. 6T 15758NA](https://cars.bonhams.com/_next/image.jpg?url=https%3A%2F%2Fimages1.bonhams.com%2Fimage%3Fsrc%3DImages%2Flive%2F2020-10%2F15%2F25013911-16-7.jpg&w=2400&q=75)
Bonhams Cars : Offered from the National Motorcycle Museum Collection, 1951 Triumph 649cc 6T Thunderbird Frame no. 15758NA Engine no. 6T 15758NA
![Sold at Auction: Property of a deceased's estate, c.1956 Triumph 650cc Thunderbird Frame no. 73264 Engine no. 6T 30871 Sold at Auction: Property of a deceased's estate, c.1956 Triumph 650cc Thunderbird Frame no. 73264 Engine no. 6T 30871](https://image.invaluable.com/housePhotos/Bonhams/56/709956/H22141-L267938440.jpg)
Sold at Auction: Property of a deceased's estate, c.1956 Triumph 650cc Thunderbird Frame no. 73264 Engine no. 6T 30871
![1951 triumph thunderbird - Google Search | Triumph motorbikes, Triumph thunderbird, Triumph motorcycles 1951 triumph thunderbird - Google Search | Triumph motorbikes, Triumph thunderbird, Triumph motorcycles](https://i.pinimg.com/originals/d3/23/8f/d3238fc902524d8edb38103d2d85508a.jpg)
1951 triumph thunderbird - Google Search | Triumph motorbikes, Triumph thunderbird, Triumph motorcycles
![Bonhams Cars : Offered from the National Motorcycle Museum Collection, 1951 Triumph 649cc 6T Thunderbird Frame no. 15758NA Engine no. 6T 15758NA Bonhams Cars : Offered from the National Motorcycle Museum Collection, 1951 Triumph 649cc 6T Thunderbird Frame no. 15758NA Engine no. 6T 15758NA](https://cars.bonhams.com/_next/image.jpg?url=https%3A%2F%2Fimages1.bonhams.com%2Fimage%3Fsrc%3DImages%2Flive%2F2020-10%2F15%2F25013911-16-6.jpg%26top%3D0.370000000000%26left%3D0.140000000000%26bottom%3D0.930000000000%26right%3D0.843333333333&w=2400&q=75)