L'ARMEE FRANCAISE PAR LUCIEN ROUSSELOT

This really is a tremendous work, a tour de force. There are two huge volumes, together weighing over seven kilograms, packed with wonderful illustrations and descriptions of the uniforms. The book has answered many detailed questions for which I have vainly sought answers elsewhere. I can also see how many of my other reference works on the French Army have used this definitive guide as their source work.