Bernhard engines were made in France.
Bernard worked at Renault as a designer and started his own production in 1919.
A lot were made.
Conord is a simular make.
On this page I have a brochure of Bernhard motors: http://home.hetnet.nl/~oostvogels/Bern.mot.htm but it is just one brochure of course
Claude OAUCHEE at this moment is writing the books "Les Constructeurs Francais De Moteur Agricoles et industriels de 1860 a 1950"
We have tome 2 (ISBN 2-9519436-1-X) which is book 2 and I am quite sure Bernard is in book 1.