Quiver in birch bark. This is a copy of an original found in a Mongolian tomb of the 13th century. You can cut out a strip of leather according to your size and pass it into the slots. Birch bark quiver. is a copy of original year in found a Mongolian tomb of the 13th century (the Middle Ages). For quality reenactment. You'll need a shoulder leather strap for varied lengths that fit into the holes height 79 cm, opening and bottom 16 x 9 cm.