Hi Greg,

faking English guns has a long "tradition". See for example W. W. Greener's book of 1910 "The gun and its development" pages 415/16:

http://www.archive.org/stream/gunitsdevelopmen00greerich#page/414/mode/2up

In older editions of his book (e. g. of 1892) the description of faked English guns is the same.

Regards

Martin