Omnium Cycles Bicycle Cycling Fantastic design for oldie but goodies cycles, bicycles and bikes from the old days. Vintage nostalgic advertisement postcards of old time cycle advertisements and broadsides promoting different makes and models of bicycles from United States and Europe. Our collectible series of bicycle postcards are great for fans of bicycling. Cycling for exercise and pleasure has always been popular, but currently biking to work and school have gained added popularity in the USA. Portland Oregon is known as the cycling capital of the United States with thousands of active cyclist biking to their jobs daily, biking for shopping and pleasure.