From Pathfinder Wiki
< AY HonorsAY Honors/Knot/Miller's/en
Use: A Miller's knot (also Sack knot or Bag knot) is a binding knot used to secure the opening of a sack or bag. Historically, large sacks often contained grains; thus the association of these knots with the miller's trade. Several knots are known interchangably by these three names. Several variations are shown here.