1898 de dion bouton tricycle 2½ hp, 300cc
this machine spent a substantial part of its life in the well-known former collection of the batavus bicycle factory . the dion bouton engine has a watercooled head with atmospheric inlet valve and mechanical exhaust valve. carburation is by optional longuemare spray carburettor, which is a huge improvement compared to the standard primitive surface carburettor. the brass tank behind the saddle contains petrol, water and oil. the box between the frame tubes houses the battery. the trembler coil is fixed to the support axle next to the engine. this machine has succesfully completed the dutch horse power run and it is one of the most special and interesting early transport veterans.
1903 de dion bouton tricycle
this picture was kindly provided by https://users.senet.com.au/~mitchell.