Been browsing and came across this amazing resource
http://www.exceedinglycurious.com/ingalls/ingalls1/ingalls1.html
John Governale has scanned all 255 pages of an 1886 J. F. Ingalls catalog of embroidery stamping patterns and placed the scans in the public domain. You can download them for free. Worth a look. They're large images and there's no thumbnails, so they make take a while to download if you don't have broadband.
Those of you making bonnets may find something suitable for the brim.
