BSA Goldstar 350 engine and frame number query

[judithbonser]

Hi, I have just bought a BSA Goldstar 350 (1949) which was registered with DVLA in 2017. For the sake of interest, I'm wondering if the frame and engine suffix numbers are supposed to match, I wonder if anyone here knows? The frame number is ZB31 3594 and the engine number is ZB32 GS-3099. If anyone can shed any light I would be most appreciative. Thanks :-)

[Bess]

Hi,
    Ask for a dating  certificate, only £5, here:

https://www.bsaownersclub.co.uk/applyformachinecertificate.html

Best wishes...

[judithbonser]

Many thanks Bess - would the dating certificate enable me to ascertain whether the actual frame and engine were the ones on the bike when it was first built and left the factory?

[JulianS]

Is the frame rigid or plunger?

[judithbonser]

rigid

[JulianS]

I will send you a PM.