This tsunobukuro or horn bag was used to hold grain. It more than likely comes from Northern Japan and it is made from linden fiber or shina. The bark is removed from the linden tree then it is bound and boiled with wood ash. After boiling the fiber is washed and separated before being spliced together to form thread. The threads are then spun and woven into shinafu. As shinafu ages it darkens in color. This bag is a deep red/brown color and has the feel of very stiff course linen. It is patched with cotton thread, white cotton cloth and several other bast fiber patches.
The bag is resting in the shade of some lemongrass.