Naval engineer Louis Delaunay married the owner’s daughter of the Belleville firm which made boilers for ships, hence the company name.  Their first cars were produced in 1904 at St. Denis and were highly-regarded.  However, the Depression in the 1930’s hit sales hard and the company closed after WW II, in 1948.

1904 Delaunay-Belleville double-phaeton. RAMI model by JMK