20 November, 2003 (7)
20 November, 2003
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Text and images Copyright (c) 2010 by Theodore W. Gray.
Carbon-filament lamp.
Source:
eBay seller nwy
Contributor:
eBay seller nwy
Acquired:
20 November, 2003
Price: Donated
Size: 6"
Purity: >90%
Sample Group:
Light Bulbs
Graphite lubricant.
Source:
Hardware Store
Contributor:
Theodore Gray
Acquired:
20 November, 2003
Price: $3
Size: 5"
Purity: >90%
Sample Group:
Powders
Assorted cast iron objects.
Source:
eBay seller barneys_cast_iron
Contributor:
Theodore Gray
Acquired:
20 November, 2003
Text Updated:
11 August, 2007
Price: $5
Size: 6"
Purity: 96%
Tantalum-filament lamp.
Source:
eBay seller nwy
Contributor:
eBay seller nwy
Acquired:
20 November, 2003
Text Updated:
11 August, 2007
Price: $35
Size: 6"
Purity: >90%
Sample Group:
Light Bulbs
Antique tungsten-filament lamp.
Source:
eBay seller nwy
Contributor:
eBay seller nwy
Acquired:
20 November, 2003
Text Updated:
11 August, 2007
Price: Donated
Size: 6"
Purity: >90%
Sample Group:
Light Bulbs
Contact thermostat.
Source:
Ursula Carlson
Contributor:
Ursula Carlson
Acquired:
20 November, 2003
Price: Donated
Size: 12"
Purity: 99.9%
Check source.
Source:
eBay seller geoelectronics
Contributor:
Theodore Gray
Acquired:
20 November, 2003
Price: $20
Size: 1"
Purity: <1%