1962 88SS correct light switch

Firstly you need to be sure that your bike is 62 and a mag bike. Earlier SS bikes were fitted with coil ignition and in that case the psr8 switch you show may be correct!. This may all be irrelevant if you are intent on building a 62 mag bike. I make this point because my old 88DL was advertised and  sold as an 88SS , which it is not.

The NOC item looks like my 1963 mag bike switch.

It's important to know the date of build /despatch. 

The switch shown is a PRS8 (Lucas part no 31443) with emergency start facility and used on coil /distributor equipped 88/99 and 650 models.  The SS models (88SS and 650SS models) used a 41SA switch  (part no 31784) and used magneto ignition.

1963 SS and Atlas models with magneto ignition used a different switch to 1962 SS models namely  the 88SA (part no 34289).

My 1961 99SS was fitted with coil ignition to complicate things. 

A genuine 88SS is a rare and very desirable bike ,I would happily build a fake one myself. I would say its one of the best Nortons ever made . A very good allrounder  with  a race pedigree.

Attachment is from a 1962 Norton Sales Brochure. Appears to show Headlight from an SS model.

And here is mine from 1963  which Ian (abovve) says should be a 34289