Estranged son of DARNE sliding breech maker Regis Darne, Francisque apparently died youngish, and the name passed into the hands of Mouthier, Jallas, Soleilhac, and others to end up part of the Verney-Carron stable where it died.
Would be grateful for those who have catalogues from the various "Successeurs" to let me know what's what and, perhaps, to set up some scans. My own "new" 16 gauge F. Darne is marked "E. Jassal & Co. Successeurs". I know that Ted Schefelbein has posted here about this company and seek more detail.
Regards, Tim