Hi
To find the correct contract number for a BSA WD M20, do I take my frame number, add it to the relevant C number block, using the ref numbers on this site?
Any advice appreciated
John B
North Yorkshire

Hi John

I guess you mean the Serial number?

The calculation is pretty straight forward for most contracts except C5110.

For example

Contract C9310
WM20 44213= C4553722
WM20 53212= C4562721

Contract C13290
WM20 71818= C4752401
WM20 76817= C4757400

WM20 76818= C4860801
WM20 81817= C4865800

Hope this helps
Rob.

email (option): robmiller11@yahoo.co.uk

Hi Rob

Thanks for putting me right, will have to repaint number!
John B