Very interesting site. Prints are reproductions of the actual patent drawings! Includes tools and machinery, and all kinds of interesting items.
http://digitaloilart.com/patents.html Terry:-)
For all that love to collect antiques of any type this site has a Patent Date Chart on about anything. Might want to check it out. I will also add to the library. Terry
http://www.patented-antiques.com/patent_date_chart.htm
www.patented-antiques.com