med felt hats---a starting point for research

http://www.personal.utulsa.edu/~marc-carlson/cloth/hat1.html

http://historicenterprises.com/cart.php?m=product_detail&p=119&c=138

http://www.rameset.com/hats-garb.htm

http://historicenterprises.com/cart.php?m=product_detail&p=115&c=138