I just purchased a few motorcycle ads from www.DadsVintageAds.com. Quite a large selection of old (older) magazines, posters and just about anything else related to motorcycles. I plan to have my ads mounted and framed for my office. I was pleased with the selection and service, and I received my shipment in about 6 days. I recommend checking out what they have.
All materials are shipped in plastic sleeves and loose mounted on cardboard. Also, date of publication and where the ad came from are usually indicated. Pretty cool! Great gift for the motorcyclist in your life.