![](http://www.alamy.com/thumbs/6/BB9FC1F2-8E27-403B-AADF-7BD382FAE63C/2GGBN9C.jpg)
curved black case w/glass tube & ball;range +/- 10deg.
Size: 3643px × 3643px
Photo credit: © Heritage Images / Alamy / Afripics
License: Licensed
Model Released: No
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