Book: Salaman, Raphael Arthur. 1990 Dictionary of Woodworking Tools c. 1700 -1970 and tools of allied trades.
• For a description of snipe bill planes, see page 359-360.Book: Goodman, W. L. 1978 British Plane Makers from 1700: 2nd Edition.
• For reference to William Ash & Co, see page 167.Book: Pollak, Emil & Pollak, Martyl. 2001 A Guide to the Makers of American Wooden Planes.
• For reference to Charles Reed, see page 338.