Gotta show off this 1860's vintage Wm. Jackson pen blade release with ivory handles and coined silver decorative bolsters. Just a beautiful knife that has survived in amazing condition. Thankfully I was lucky enough to be in the right place at the right time to buy it. Anyone else have any vintage Sheffield Switchblades to show off. Please post. http://i289.photobucket.com/albums/ll222/knfcollector/jackson1.jpg