Interesting. Congratulations. Thank you for the pictures.
It would also be interesting to examine the parkerized barrel in 740810, to examine the "blue under the park where the wear was" effect that barrel displays.? Some believe, the phosphoric acid in the parkerizing solution would chemically strip all "bluing" as part of parkerizing the barrel. A partial bead blasted metal surface (matte finished) that was blued might give the appearance described by Karl with the barrel in 740810.?