The Modern Motor Cycle

Big advertising card, 6 inches by 9 inches, for the Ariel motorcycle.
Printing on back:
ARIEL Cyclone Twin
40 cubic inch o.h.v. Sports Twin, brilliant new performance and bright finish in two toned baked enamel and chrome make Ariel's new cyclone top choice for the red-blooded motorcycle sportsman.
Found in "Sears 1961 Suburban-Farm Supllies and Fencing Catalog" issued by Sears, 1961.