authentic vintage flour sack fabric, primitive old cotton feed sacks lot

Lot of more than a dozen genuine old cotton flour sacks or feed sacks, all opened flat as fabric. Most of these measure about 36" x 38" and show the stitching holes at the selvages. There are a few partial sacks in this lot.

These are not identical in fabric weight and / or type, though the fabrics are similar in weight and color. All of them have spots or age related discoloration, and some have a few rips or holes as well.