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