In 1977 Triumph introduced a special, limited edition Bonneville to celebrate HM Queen Elizabeth II's Silver Jubilee. This was basically the standard T140V Bonnie enhanced by a red, white, and blue on silver finish, coach-lined cycle parts, and a chromed timing cover and primary chain case. Originally the plan was to manufacture 1,000 units for the UK market, but such was the demand that a further 1,000 were built for North America and another 400 or so for export elsewhere.

This example of one of the more collectible of later Bonnevilles has covered a genuine 7 miles only from new. Its late owner purchased the Triumph at a UK auction in May 1996, at which time it was described as having been supplied new to the then vendor, a Triumph dealership that had carefully mothballed it, preserving the machine in 'brand new' condition. Unused since acquisition, the Bonnie will require re-commissioning or possibly more extensive renovation before taking to the road and thus is sold strictly as viewed. It should be noted, there is no key present. Accompanying documentation includes the auction catalogue, assorted correspondence, and a Triumph Owners' MCC dating letter. An owner's handbook and Haynes workshop manual are included in the sale.