“Supersport” frame # O 11 A 294 engine # O-11-108
The firm of Soyer & Cie produced motorcycles between 1920 and 1935.
The company was originally established in Colombes, France and later on moved to Levallois.
Soyer was one of the very many French makes that used a variety of proprietary engines for their products, although they also produced their own power sources.
JAP, Sturmey Archer and Chaise were among the engines that were employed.
This particular machine is equipped with a fierce looking ohc face cam engine of Soyer’s own manufacture.
Only five of these exotic sports machines are known to have survived.
This particular machine has been part of a French collection for a long time and it’s a well-matured restoration.
For more info about Soyer click at http://members.ziggo.nl/esselink/index.htm