Half hull model ship
Prior to the twentieth century, half hull model ships were constructed by shipwrights as a means of planning a ship's design and sheer and ensuring that the ship would be symmetrical. The half hulls were mounted on a board and were exact scale replicas of the actual ship's hull. With the advent of computer design, half hulls are now built as decorative nautical art and constructed after a ship is completed.
- "Encyclopedia of American Folk Art," By Gerard C. Wertkin, Lee Kogan, American Folk Art Museum Contributor Gerard C. Wertkin, Lee Kogan Edition: illustrated Published by Taylor & Francis, 2004 ISBN 0-415-92986-5, 978-0-415-92986-8  (accessed Google Book search January 14, 2009)
- "Half-Hull Modeling," (The Apprenticeshop, Bath, ME USA:1980)