INCO S-ROUNDS Electrolytic Nickel.
These little buttons look a lot like my cobalt buttons and were no doubt made in a very similar way, by electro-deposition from a salt solution.
I chose this sample to represent its element in my Photographic Periodic Table Poster. The sample photograph includes text exactly as it appears in the poster, which you are encouraged to buy a copy of.
Source: eBay seller jamrat2000
Contributor: Theodore Gray
Acquired: 14 February, 2003
Text Updated: 4 May, 2007
Price: $18/pound
Size: 1"
Purity: 99.9%
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