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|  |  |  |  | | | Another anode. This is an unusually attractive zinc anode, meant to be bolted to a ship's hull to prevent oxidation (rusting) of the hull.
 Source: eBay seller artone03
 Contributor: Theodore Gray
 Acquired: 10 August, 2004
 Price: $7
 Size: 8"
 Purity: >98%
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