The maker is Charles Antoine Blerzy. Arminjon (v. I, no. 571) has very little information on him, just that he registered his mark 1799/1800 at 10 Place Thionville as a maker of "la grosserie" (a plateworker, essentially, as opposed to a maker of flatware or smallware, though there was, of course, much crossover). My research has been similarly paltry: all I could find is that he was born in Paris around 1769, the son of gilder Jean Baptiste Blerzy and his wife Anne Francoise Elisabeth Baudry, and was a member of the Blerzy family of silversmiths and jewelers, which included his uncle Joseph Etienne Blerzy (1735-1821; master 1768) [Arminjon I: 1741] and cousins Philippe Blerzy [Arminjon I: 2842] and Etienne Lucien Blerzy [Arminjon I: 977]
Hope this helps!