The problem with this approach, in the long term, is that these pieces of artwork remain unstudied for generations and certain facts can remain ignored (see the Francis Bacon post as a good example). The result is a huge difficulty when collecting information, especially after the death of the artist. Generally, museums and foundations will provide contextual and bibliographical notes, rather than specific information on carpets and their weaving techniques.
Roy Lichtenstein, Composition, p34, Art Surface Collection, 1993. The Carpet Index Library
Roy Lichtenstein created piled tapestries, produced by the Charles Slatkin Gallery in New York during the 1960s. Some wall-to-wall carpets were also produced by the German manufacturer Vorwerk. The only rug I have referenced is shown above. it is inspired by artwork from his last period, but unfortunately I was not able to determine the exact original painting. The rug is called Composition and is part of the Art Surface Collection. It was produced by the Sedcome Edition company of Paris in the 1990s.
The rug was initially referenced for the catalogue in a standard size of 2m x 3m and a license was signed to produce 100 copies. The rug could be purchased either with a hand-tufted or hand-knotted technique, and eventually individual sizes were produced. The name of the artist was generally embroidered onto a textile band, which was then cut and glued onto the backing, on a corner of the rug. The artist usually received several example rugs.
The rug has appeared in a number of different auctions, for example: Espace Tajan, July 1 2005, lot 450, and in a sale this year in the United States.