5 October, 2004 (1)

5 October, 2004

Click any element tile below to get the full entry for that element, or click on the sample picture to go directly to the description of that sample.

Text and images Copyright (c) 2010 by Theodore W. Gray.
Mercury Temperature compensating pendulum
Temperature compensating pendulum.
Source: eBay seller proclocks
Contributor: Theodore Gray
Acquired: 5 October, 2004
Price: $86
Size: 4"
Purity: 99%