Show sample as: 72-frame QuickTime VR or 360-frame QuickTime movie loop.    My periodic table poster is now available! Finezinn tin cup. I know the purity of this cup is 95% because it's molded into the bottom as a mark of quality. "Zinn" is the German word for tin, so we know this is a cup made of 95% "fine" or pure tin. Source: Ivan Timokhin Contributor: Ivan Timokhin Acquired: 8 December, 2007 Text Updated: 9 December, 2007 Price: Donated Size: 4" Purity: 95%