  Lead for making type. 
This is lead meant to be melted down and cast into lead type for printing with a letterpress.  I got it at the closing out auction of a small printer, see subsequence samples for more details.  Lead used for printing has 15-17% antimony mixed in to make it remain exactly the same size when it hardens, rather than contracting slightly as pure lead would, and to make it harder.  
Source: Auction 
Contributor: Theodore Gray 
Acquired: 1 July, 2007 
Text Updated: 1 July, 2007 
Price: $1 
Size: 3" 
Purity: 85%
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