 The only surviving full sheet of the small "Persian rug", was used to pay tax duties on the will of Erastus Corning, Sr. in 1872.The 500-dollar large "Persian rug" is indeed larger, measuring by 4 inches with only 204 stamps of this denomination ever issued.Because of their relatively large sizes and the subsequent large number of perforations on each stamp, and the fact that they were used on documents which were typically folded across the stamps, most examples exist with some sort of flaw(s) about the stamp paper.