Mike, Thank you for sharing the article. I hadn't seen it. The author is the same gent whose post on Doublegunshop is now up to 96 pages (Argo44). You're looking at the best info there is. Address as you know is critical for dating a Reilly.

He's got mine in the 1878 group (I'm 21361 "E.M. Reilly & Co., Oxford Street, London & Rue Scribe, Paris. .450BPE. Rifle SxS. U-L, hammer gun. Henry patent A&T use #3524, #3525")

Chris