This is one of a small group of carpets, most of which have variations on a lozenge lattice field, all with identical spandrels. Many also have the same minor border as is seen here. One of this group with an ivory field which is in the carpet museum in Tehran, is inscribed with the date of 1231 (1816-7 AD) (Hali vol.1, no.1, p.45). It is attributed to the Bakhtiari. Another similar example was sold by Christie's on the premises at Parham Park, 14 May 1996, lot 723. Three further examples, one with the lozenges divided into three columns, have been in our King Street Rooms, 18 April 1985, lot 97, 12 October 2000, lot 149, and, from the James D. Burns Collection, 18 October 2001, lot 260.