My comments concerning the engraving are made to the quality of the workmanship, the cutting. The layout and artistic expression are fine. Often, in engraving factory settings, the designs were of the master engraver and the cutting done by guild workers, journeyman and apprentices. The cuts are ragged and unclean. The depth of the cuts varies greatly and is most evident when comparing the receiver sides.
The engraving is not the work of a single master such as RK or for that matter any of the other very fine masters mentioned above.

One comment about tools used...it matters not because art is in the artist. Michelangelo would have thrown away all of his hammers and chisels for just one air hammer. Or modern 3M abrasives!