Most serious collectors prefer more-refined "city carpets, " such as Iranian Ardabil rugs, made of 100% New Zealand worsted wool and boasting 150 to 200 knots per square inch.

FORBES: Magazine Article

Most serious collectors prefer more refined "city carpets, " such as Iranian Ardabil rugs, made of 100% New Zealand worsted wool and boasting 150 to 200 knots per square inch.

FORBES: Carpet Bombing