Bonaventure M. Lebert
Lebert, Bonaventure M.
B. M. Lebert
Designed by Marie Bonaventure Lebert (French, 1759–1836)
Manufactured by Hartmann et Fils (French, founded 1776)
France, Munster Designed by Bonaventure M. Lebert (French, 1759-1836) 
Manufactured by Hartmann et Fils (French, founded 1776)
France, Nantes