One would think that the number "13" associated with "G.N. Pat S." should normally be the use number. That's an early use number for an 1889 gun. We just don't know enough about that Patent to hypothesize some reason for this.

I've only one Reilly with a Needham patent and that was for Needham & Hinton patent 706 - intercepting sears on back action (bought by Scott) and was used on a gun with a Scott action. Reilly seemed to prefer Perkes for ejectors. The problem with this of course is that most advertisements just don't list patent use info in them (Toby Barclay being the obvious exception) and that makes the database pretty limited. Never seen another Reilly like this one. Thanks.