This was an early sewing machine,[3] for "raising flowers, figures and other ornaments on muslins, lawns, silks, woollens, or mixed cloths".
[4] Duncan may have used the chain stitch, which was employed for tambour lace, as was later done by Barthélemy Thimonnier.
[7] Duncan's major work was Practical and Descriptive Essays on the Art of Weaving (Glasgow, 1808).
[8] Duncan wrote an account of his tambouring machine in the Edinburgh Encyclopædia, article "Chain Work,"[9] according to Harte.
(p. 124) Duncan was also the probable author of the "Cloth Manufacture" article in Volume 6 of the Edinburgh Encyclopedia, signed "(J.D.)"