The Chantiers de la Buire were founded in Lyon in the middle of the 19th century to produce tramway and train materials. In the 1890s a contract was made with Léon Serpollet to produce some tricycles under license, but real car production started in 1904. The cars were known under the name of Buire, La Buire (and according to Georgano even De la Buire in England). The make was regularly successful in competition and was particularly known because of its silent drive. In 1907, also in Lyon, the Lumière brothers developed the first commercially successful production of colour photos using starch particles. These particles however caused a rather grainy structure as you can see in the mystery photo. This colour photo of the La Buire was apparently one of the first made by the Lumière brothers and for this they could very well have used their own car! La Buire is not always easy to identify, recognizable features being the grip on the bonnet and the rimmed radiator shell. The latter feature is hard to see, caused by the photographical process.
Not an easy mystery again, apparently, so regrettably no winners. However we had one brave attempt by Bernard Correge, who suggested Motobloc. This suggestion was close indeed, because also Motobloc had a more or less similar grip on the bonnet at the time.
(quiz proposal and text Ariejan Bos)