With Mr. Chambers post on "America-Made Damascus", he notes p. 220(which I assume is the same in the 9th edition) for barrel info. There "The wire twist barrels - not an imitation of the figure of coiled wired-were made by Barrois of Paris at the end of last century" with Barrois & Marolles, who seems to have written a text-English translation in 1789, both being noted. William Dupein had a twist gun barrel patent in 1798. And "In 1806 J. Jones patented a method of making barrels from scelps or strips coiled a mandrel so that the edges overlapped, and then welded together at the edges of the strips. Stub barrels, made from old horse-shoe nails, were greatly in vogue at the commencement of this century." A process different from the ones in Spain or France. "The horse-shoe nail stub barrel was the first attempt to produce a figured barrel in England." "Scelp or plain rods were first twisted, afterwards the strips of the horse-shoe nail iron were twisted in like manner; and the introduction of Damascus iron followed shortly afterwards(1820)." Mr. Wiswould and Mr. Adams, both of Birmingham, were given credit.
Kind Regards,
Raimey
rse