I found a request, as below, on the N.O.C website..
some of you may be able to help him.
BBC Four’s TimeShift series is in the process of making a documentary celebrating the great British motorcycles of the 1920s - 1960s and is on the hunt for some of the best home movie film material of owners and their classic machines.
They are specifically looking for footage from the 1930s up until the late 1960s of classic motorcycles including Norton.
If you can help then please contact James Harrison and give a brief outline of what kind of footage you have, what era the footage is taken from and what kind of film format it is.
Email James for more info on firstname.lastname@example.org