3rd try

[Dean Romig]

Austin, I just perused "all albums" and took a look at hammerguns, especially Robin's 46 picture album of hammerguns, and saw exactly what you mean by "roll marked" engraving (for lack of a better word). It is indeed an "interesting question" and may be a good topic for a Parker Pages article.

[Roundsworth]

There is a Grade 2 on page 269 of TPS. My 1879 Lifter, #15728, has the same type of engraving and shows up in 'the book' as a Grade 2 with 'Laminated Steel Barrels'.