In the taiga camp, the Shors built temporary pole or permanent log houses and barns to store fishing equipment. Sometimes such tools were made right on the spot.

Cones were collected on the ground after gusty winds, pulled from tree crowns or knocked down by using special mallets to tap bare inaccessible trunks.

The cones were put away for some time to get rid of the resin. Then they were ground on a wooden notched grater, the nuts were extracted and winnowed by tossing in a “sargash” birch bark box. According to the “Essays” of Leonid Pavlovich Potapov, “an adult worker could hardly winnow about 1.5 centners” of grain or nuts per day.

To sift the crushed nuts from the chaff, a birch bark sieve with large cells was used. During the work, the peeled nuts fell onto the linen that was spread beneath, and the scales and large pieces of dirt remained in the sieve and were thrown away.

The presented sieve is made from a single piece of birch bark with the outer layer facing out. The sides of this low, slightly elongated rectangular box were made slightly raised and stitched along the top edge with straight stitches. The corners were bent into a triangle, pressed with rectangular strips of birch bark, and additionally reinforced with a horizontal bird cherry rod.