This Military and folding model is from 1901.

"1900, Dursley-Pedersen military bicycle: Michael Pedersen designed a folding military model of his famous bicycle for the British Army, in 1900. It had 24 inch wheels, and a low frame so a Soldier could put both feet on the ground while sitting on the saddle. It also had a rifle rack, folding forks, a hammock saddle, and weighed only 15 pounds, and could be carried on the back, and was used in the Boer War effectively. "

folding-1901

This was quickly followed by a new design of gun and rifle carrier. Of all these "The field" in June gave account.

"For the sake of lightness and portability the experimental machine was built with a low frame and 24 ins. wheels, the seat being fixed farther back than usual. By a very simple device the frame can be disconnected (from the front fork) at the head in a few seconds for the purpose of carriage. Instead of attaching the rifle rigidly to the machine as is customary, it is carried in a vertical position in front on two light projecting arms which work against a spring, so that is a live instead of a dead weight. It can be detached in a moment and fired without dismounting, the lowness of the seat enabling the rider both feet on the ground. When the bicycle has to be carried it is disconnected and the front wheel with forks and, handlebar, secured by the side of the other by a single strap. And be carried on the back of a soldier."

 military

"Dursley-Pedersen military bicycle: Michael Pedersen designed a folding military model of his famous bicycle for the British Army, in 1900. It had 24 inch wheels, and a low frame so a Soldier could put both feet on the ground while sitting on the saddle. It also had a rifle rack, folding forks, a hammock saddle, and weighed only 15 pounds, and could be carried on the back, and was used in the Boer War effectively."

 Source: The Ingenious Mr. Pedersen