Brian MacDonald Antique Rugs & Carpets has dated this piece to the 1920s.
Woven on ground looms as you see it, the sides and base were brought together and sewn up using goat-hair.

By the 1940s, plastic and gunny sacks had arrived in the bazaars of Iran and these began to replace the age-old tashehs to the point that they simply died out. Today, old tashehs are rare.
Size: 1.12m x 0.87m (3' 8" x 2' 10").
Brian MacDonald Antique Rugs & Carpets has dated this piece to the 1920s.
Dealing in antique and old tribal rugs, dowry weavings and decorative carpets from the near east and central asia since 1979.
You can view the stock and full dealer information on the Brian MacDonald Antique Rugs & Carpets Profile Page