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Is the photo a mistake? It seems to be of a dutch style bridge over some reclaimed land. Nothing to do with the topic of the article. Either it's wrong or the article text needs to be clearer.— Preceding unsigned comment added by 87.194.10.183 ( talk) 21:29, 9 January 2007 (UTC) reply

Yea this article doesn't do a good job of describing what a ravelin is. —Preceding unsigned comment added by 70.50.136.14 ( talk) 05:40, 19 May 2008 (UTC) reply