19th century Caucasian corridor carpet

Interesting and rather beautiful old rag bag of a kellah; circa from mid to early 19th century.         (I can’t resist buying these old fellows). Perhaps from Kuba/Shirvan area, the border with wine glass / tuning fork symbols, the field more Kuba..?  Size: 14′.0 x 5′.4″ (4.26 x 1.63)