Thanks for all the kind words and info!

I don't think the Lyman "six" sight I have is a proper .375 H&H replacement? This sight does not have the cut notch I see in Rule's book (page 166)? Has "Lyman 6" engraved on the bottom but I don't see a W anywhere. Great shape, nice knurls on the edges but doesn't look correct for the .375, M70. I'm thinking it may be for another gun (1895, etc.)? If so, can anyone rough date it?

[Linked Image]
[Linked Image]
[Linked Image]
[Linked Image]