Matt, reviewing this, now suspect that you are right about the top lever patent. Here is an advert for Reilly 20474 - with both Purdey and Scott patent numbers mentioned - unfortunately no numbers pictured:
https://auctions.holtsauctioneers.c...++6009+&refno=++183988&saletype=

THE STOCK, ACTION AND FORE-END ONLY OF AN E.M. REILLY 12-BORE TOPLEVER HAMMERGUN, serial no. 20474, circa 1870, originally black powder proofed, action flats stamped with patent use numbers for Purdey double bite, use no. 1101 and Scott spindle, use no. 1081, elegant toplever, fore-end with grip-catch release lever

(20474 would date to 1876 not 1870).

Last edited by Argo44; 12/03/25 10:28 PM.
Baluch are not Brahui, Brahui are Baluch