Should be
20M3/?
Is the frame/frame plate also stamped 130319?
In a previous thread, you said that you "
Have a 1969 roadster with the same oil tank."as an 'S' Type...
Starting a new thread for restoration progress on the fireflake red ‘69 750 S. First things first. Just shot black lacquer with clear coat over on the main frame. Waiting for delivery from AN for isolastic parts and fork seals.
www.accessnorton.com
... however, 20M3/130319/P is not only too early for it to be a Roadster as a Roadster or 'S' Type (also too early) with the same (central) oil tank should have a 20M3
S (camshaft points) engine number prefix and neither Fastback nor 'R' Type in production at that time had the 'central' oil tank. A 20M3 engine should have a points housing behind the cylinders.
I cannot identify that number. Is it a stamped number or a casting number (so above the surface of the casting)?
The gearbox would normally have a matching (130319) number stamped across the top mounting lug.
I assume that number is actually on the cylinder block and is the
casting number for the 750 block.
If for whatever reason, it has a central oil tank...
Andover Norton Parts are the only Norton spare parts in the market manufactured to original drawings, within the factory-approved tolerances, from the correct materials, and with the correct finish.
andover-norton.co.uk
"1969/70 "Roadster" & "S"" ('69/'70 'S' and '70 Roadster).
...then it would need the 06-1220 battery tray (and RH access side panel).
Motorcycle parts and spares for Andover Norton motorbikes: Andover Norton manufactures and supplies all Factory Spare Parts for Norton motorcycles built before 2002.
andover-norton.co.uk