Enormous collection of vintage, veteran & classic British motorcycle advertising comprising 27,900 images at time of writing.
The author writes, "Rockers Bike Ads is a non-profit resource for Motor Cycle enthusiasts... Put simply this is a searchable database of (primarily) pre-1980 British Motor Cycle Industry advertisements classified by Manufacturer, Year and Product type. All material is sourced form original literature in my personal collection."
Sources:
Web: rockersbikeads.co.uk A-Z Index