Brad, the top barrel stamp was done before final polish and bluing, the other stamps were done after. The dovetail must have been done as a gun was ordered since there were options to leave out the rear sight dovetail or to change the position.

Here is the 1895 extra's page again and the 1897 & 1900 to show the changes -
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They also list an option for the wood of the stock, American or English walnut, I hope they meant 'Select' and you did get a stock on your gun without paying extra! what else would they have used? Note the maximum barrel length is now only 30", I bet a lot of people back then were kicking themselves in the rear for not ordering a 32" when they could!
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Here's a picture of the basic checkering from the 1900 catalog, the rear is like the 1895's and the front top appears to curve and wrap over the same way.
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Gene