I just won, or rather stole, a Caminetto on eBay,http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&rt=nc&nma=true&item=260743206953&si=mv3oKiGwJd9xVQ4Wls9tDXMu4Us%253D&viewitem=&sspagename=STRK%3AMEWNX%3AIT, and I don't remember the significance of the numbers on the shank. Can anyone fill me in?