Beryllium Thimbles
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Thimbles.
These are small thimble-like parts: No idea what they were used for but it's probably aerospace related since there are few other applications of beryllium.
Source: eBay seller allthedodaday
Contributor: Theodore Gray
Acquired: 2 November, 2004
Price: $38
Size: 0.5"
Purity: 99%
Beryllium