A cased "Imperial Protector" pin-fire ring pistol dating: third quarter of the 19th Century prove
Bague Oeil D'Horus (Acier Inoxydable) | La Bijouterie Impériale
Imperial Protector” Pinfire ring pistol, Belgium or France, mid to late 1800s, from Rock Island Auctions. 2nd pic in comment. Source: proxibid.com (662x1023) : r/ArtefactPorn
FREDERIC M / Bague L'IMPÉRIALE TAILLE 9
Bague en or et Béryl Impérial (AMAYANI)-4729GO | Juwelo Bijouterie
Bague topaze impériale 375 ct en or jaune 18 carats bague - Etsy France