Lees & Son, 63 George St. Perth, c. 1874; Robert Lees, 63 George St., Perth, c. 1878-c.1897.

That's all I can find. A. Henry, eh? This a BPE, or Nitro? What period are the proof marks? Hammergun?

Can't imagine Lees to be a trade maker. Not a barrel filer either - those guys didn't sign their work that way. Could be the gun was sold through Lees, but Perth isn't far enough from Edinburgh for that to seem necessary. Has the gun be re-barreled?
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