Their first motorcycle was offered to the public in 1902. Its mechanical detail is worthy of note for the sake of comparison with the models of the current year. Its motor was the Hedstrom single-cylinder motor of 1-3/4 horse-power; frame, 22 inches; tires, 1-3/4 inches, single tube; chain drive; weight, 93 pounds. From the year 1902 to 1909, the style of their motorcycle remained substantially the same in appearance. The models of that period are referred to as “camel backs” by reason of the location and shape of the gasoline tank on the rear mud guard. In 1909, the loop frame was introduced to provide additional strength to the machine, being required by the increased weight of the motor; 1906 saw the introduction of twin cylinders for racing models, and the following year they appeared in the regular models. Motorcycle design has made wonderful progress. The powerful, easy-riding machines of today with their many refinements are truly marvelous pieces of mechanism. Mechanical perfection is as nearly approached as it is possible for the best brains and the most approved methods of manufacture to attain. There are numerous modern refinements which have contributed materially to the present-day popularity of the motorcycle that are worthy of special note. Chief of these is the kick-starter, which enables the rider to start the engine of his machine without mounting it upon a stand or pedaling on the road. Improved clutches, gear ratios which permit varying speeds, double-braking systems and electric lights are present-day refinements which add zest to the sport of motorcycling. One of the greatest of all motorcycling comfort creations is a device known as the cradle spring frame which consists of pairs of cushion-leaf springs of the semi-elliptical type, which are located at the rear of the frame just beneath the saddle. This affords the maximum of riding comfort by the elimination of all jar and jolt occasioned by an uneven roadway. Magneto ignition first appeared in 1908; previous to that date all ignition had been dependent upon batteries of the ordinary dry-cell variety. The last two years has seen the introduction of what is known as the light-weight model. This style of motorcycle has a smaller motor, which is usually of the two-stroke type, single cylinder. The frame is of lighter construction, the mechanism is simpler, and of course the speed is reduced. This type of two-wheeler, however, finds favor among those who like power and speed but in modified form. Lower initial cost and lower operation expense are factors which especially recommend the light-weight models. [Illustration: MODERN DELIVERY VAN FOR GROCERS, DRUGGISTS, ETC.]