Just spent a few minutes on Google (Search Engine) Here's a few links you might find interesting - some have illustrations http://www.idomemories.com/harbor/12.asp http://www.cedex.es/cehopu/expomanila/p6in.htm http://www.port.nmm.ac.uk/ROADS/subject-listing/water.html http://www.miamisci.org/shipwreck/shipbuilding.html http://moas.atlantia.sca.org/topics/ship.htm http://www.mun.ca/mhp/nautical.htm