Cloth Seal, Unknown, Continental, Double-Headed Eagle

Cloth Seal, Continental, Double-Headed Eagle, Image & Found by Mlýnek Karel.
Found near city Pardubice, Czech Republic, 30mm.

6279 / 39.3 // missing but stamped on rivit stub - double headed (both crowned) eagle with shield on breast with pierced cross pattée suspended below

The numbers probably refer to a particular order and a length.

The eagle appears to be quite specific in its detail and should be identifiable. The shield on the eagle possibly bears a mounted rider and this would suggest Russia along with the crowned eagle heads.