This Alex Henry has been a subject of a discussion, and hope someone here can shed some light on it
https://www.skinnerinc.com/auctions/2946M/lots/40The listing states that it's an Alex Henry from the 1870s, "retailed by Purdey".
Alex Henry's name is on the locks, while Purdey's South Audley street address is on the barrel. I find this to be an extraordinary arrangement, since -to the best of my knowledge- guns "retailed by Purdey" were left with original markings, only with an "A" prefix added. I have not seen one where Purdey engraved their name on the barrel like this.
Also Purdey started trading at the Audley Street address in 1883, which does not fit the description that the gun is from the 1870s.
Note that guns "retailed by Purdey" are different to the B, C, D, and E quality guns made from the late 19th century till before WW1. Those B, C, D, E guns all bore Purdey's name only, and were mostly made in Birmingham for the London firm. They did not bear other makers' names like the Alex Henry discussed here.
What do you think?