i picked this up at a garage sale today I have never seen one of these before but I'm sure it is silver as it sure looks like silver and is starting to tone around the edge it came in a see through plastic fitted box, when I got home I weighed it and it weighs 31.1 grams so now I'm am more sure it is silver but my question is being a troy oz is it .999?
anyone know anything about this? value? anything I tried searching google and
ebay but couldnt find a match

