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3D3DCopper "ingot".
Described as an "ingot" by the seller, this is actually a piece of rolled copper bar cut to length. It was being promoted as being suitable for investment purposes, but while the price of copper has gone up a lot, it's really not a commodity you can practically invest in in its physical form: The cost of moving it around would swamp any likely profit.
Source: eBay seller dfried18
Contributor: Theodore Gray
Acquired: 30 September, 2008
Text Updated: 1 October, 2008
Price: $1.36
Size: 4"
Purity: 99.9%