Rack Spool Small 264×320 Medium 528×640 Large 844×1024 Download Tiff Original 1979×2400 | (1.1 MB) Description A cylinder of wood, plastic, cardboard, or other material on which wire, thread, or string is wound. Keywords roll, spool, twine, wind, wrap Galleries Textile Manufacturing Source: Government Printing Office Official Gazette (Washingon, DC: Government Printing Office, 1912)