You also have to account for the fact that the metal was likely still case hardened. I have little experience with french graying, so i cannot say if that would effect it or not.
Also, the amount of engraving recutting would likely be limited due to the hardened surface. The french graying and recutting, would have removed anything that was imbedded into the engraving, so it doesnt stand out as much.
Personally, i do not see much of an inherant difference between the two frames in the photo, except for the dark engraving.
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B. Dudley
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