I give this rug an Armenian provenance for many reasons but the main one is “Solomon’s Knot”

Solomon's knot is the common name for a traditional decorative motif used in ancient times and adopted by many cultures since the stone age. The design was used frequently in ancient synagogue designs, likely leading to the symbol's association with King Solomon. Very common in Roman mosaics since the 4th century, it appears to have been adopted as a Christian symbol, appearing in various sources and ancient stonework in medieval churches, suggesting that its meaning and symbolism was widely understood.

Its most accepted meaning is that of symbolizing the deep union of Man with the divine sphere. Symbol of eternity and infinity, its intertwined links represent the bond that exists between human and divine nature, the Covenant between God and man. In early Christianity, it appears frequently in the mosaics of Roman basilicas, as in Aquilea and Invillino.

Dagestan Armenians have mostly lived in separate settlements. Based on chronicles, historians believe that the first Armenians appeared in the area of the strategically important fortress of Derbent (the Armenians traditionally called it Choga) in the 5th century AD. And having established an apostolic temple with a patriarchal throne here, they became the first Christians in Dagestan. In the 18th century, Karabakh Armenians founded their trading settlement Karabagly near the city of Kizlyar. Now, it is the only settlement in Dagestan with an Armenian population. Derbent used to have a large Armenian quarter (Magal) at the beginning of the 20th century. 275 x 151 cm (9' x 4' 11")