Its a Triumph, but which model ???

[Lincolnshire_Poacher]

Heres a couple of images of a Triumph my Dad is interested in buying, the log book says its 1929, and the registration appropriately bears the letters 'SV'.
We believe its 550cc, but we don't know which model it is.
By the way, the claxon works !!

How do i add piccies ??

Cheers
Phil

[33d6]

Hi Phil,
The frame number and engine number are equally necessary for ID. In some ways they count more than piccies.
With pictures you can say what it looks like. With frame and engine numbers you can say what it is.
Cheers, Bob

[Lincolnshire_Poacher]

I've emailled in piccies to be added, one of them hopefully shows the engine number, but in the short term, were looking at 1929, side valve, Carbide lights, Claxon horn, hand change, and radial fins on the cylinder head, theres some sort of plunger on top of the magneto drive as well. Somehow, the cylinder head looks different to the Model N, that comes up on google, i think it was Costwold Classics website, that showed one.

Phil

[VintageBike]

[TriSpec]

Phil.

Every time I blink the engine numbers on your picture change values! If you let me have the engine numbers and those three following letters on the crankcase I can let you know when it was assembled. The frame and possibly gearbox numbers would also be useful for my research records.
I know which model it is, and it's not 1929. 'SV' is an age-related registration as the original has obviously been sold for a fancy car.
I am contactable at <peter@triumph.gen.nz>
One of the booklets I've written covers this model and if you contact me I'll send details.

Regards, Peter.
(Triumph specialist for the VMCC of Britain, but now resident in New Zealand.)