I am aware of two suggestions for identifying this ornate antique piece. One suggests that it is a traditional fur headdress from Mongolia or a closely related Central Asian culture. Another sees it as a 18th-19th century historical cope or hood of a liturgical vestment, likely Russian or Greek Orthodox. The elaborate construction is hand-sewn.
It is obviously a winter cap with enormous gray fur side ear flaps. The crown is covered in blue silk adorned with dense gold metallic embroidery and braid. The floral decoration includes small red jewel-like elements and metal sequins. There is a suggestion that the embroidered gold floral sprays on the hood resemble a stylized seraphim -- commonly utilized in Byzantine vestment design.
The crown is covered in blue silk. Long cream and blue silk ties and the scarf appear to be an integral part of the headdress. The detached scarf woven from fine silk damask brocade shows the elaborate work of thread at the ends.
Is this ornate piece a traditional bonnet-shaped Mongolian winter headdress ? or part of an antique winter clerical vestment of Russia or Greece? It appears to be about 150 years old.