thank you for info. There is stamped „KOYO“ and they need a new chrome plating so I intended to use original rims or buy new ones with original marking. Unfortunately I found only full width hub types.
I bought my Norton from a friend who imported it from UK 2 years ago. This is 1939 WD 16H.
During last restoration there were used many unoriginal parts and replicas. I have bought most of original parts but I am still missing horn, 1" handlebars, civilian shock absorber adjustment wheel, rims and headlight.
I uploaded some old images here: http://koutnyjan.rajce.idnes.cz/
Today it is disassembled so I will add some more photos after restoration.