Modifiche

== External references ==

== External references ==

* http://kamakurapens.invisionzone.com/index.php?showtopic=1851

* [http://kamakurapens.invisionzone.com/index.php?showtopic=1851] Discussion, unfortunately the site is no longer accessible

* http://translate.google.com/translate?prev=hp&hl=en&js=n&u=http%3A%2F%2Fwww.opiorach.blogspot.com%2F&sl=pl&tl=en

* [http://web.archive.org/web/20060514223746/http://www.tryphon.it/pens/history.htm] An article in the [[Settimo Torinese]] district, with references to Williamson

* http://www.tryphon.it/pens/history.htm

* [http://web.archive.org/web/20130308045910/http://www.pentrace.net/2002/article032802_170.html] An article on the brand (Turin)

* http://www.pentrace.net/2002/article032802_170.html

* [http://xoomer.virgilio.it/leiacopi/williamson_fset.htm] A page from the old Letizia Jacopini website

* http://xoomer.virgilio.it/leiacopi/williamson_fset.htm

== Notes ==

== Notes ==

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