Brian MacDonald Antique Rugs & Carpets has dated this piece to the 1880s.
I have handled and seen a fair number of these Dokhtar-e-Qazi prayer-rugs over the years but I've never seen the use of the central tree in any of them until this one!

Silk can be observed highlighting the pointed mihrab as well as at the very top of the tree, particulary seen in the close-up photos attached.
In very good original condition with the remains of the chevron kilim skirts at the top, this rug therefore, must have been very important to the owner and highly prized.
Size: 1.25m x 1.00m (4' 1" x 3' 3").
Brian MacDonald Antique Rugs & Carpets has dated this piece to the 1880s.
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