https://www.sothebys.com/en/buy/auction/2021/the-family-collection-of-the-late-countess-mountbatten-of-burma/a-gold-pair-cased-quarter-repeating-watch-1765
Justin Vulliamy, London | A Gold Pair Cased Quarter Repeating Watch,
a gold pairjustinvulliamylondoncased
https://www.sothebys.com/en/auctions/ecatalogue/2019/watches-l19070/lot.39.html
(#39) JUSTIN VULLIAMY | YELLOW GOLD ENAMEL AND DIAMOND-SET DUMB QUARTER REPEATING CYLINDER...