Paperhanger's Seam Roller
The paper hanger's seam roller is a small tool that has a revolving roller which could be flat, curved, or beveled surface. It is used to roll over the seams of wallpaper and borders for a flat join.
Maire, F. Modern Painter's Cyclopedia (Chicago, IL: Frederick J. Drake & Company Publishers, 1918)
Courtesy the private collection of Roy Winkelman