'What do the Numbers 3500 and 1542 Tell Us? Part One', posted on 9/16/2014
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Inspection Certificate on Box Lid of Buff&Buff Sextant #13030/USNO#1231 |
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'What do the Numbers 3500 and 1542 Tell Us? Part Two', posted on 3/12/2015
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Brandis 2763 Box Label
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eBay Description of Brandis Sextant #2763
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Description of Brandis 3193, Smithsonian web page
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Description of Brandis 3239, Invaluable web page
![](http://1.bp.blogspot.com/-E4AN8AgFtCM/VQJM-Xgj_lI/AAAAAAAAAG4/LhD801zx8OQ/s1600/Brandis%2B3239%2Bjpg.jpg)
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eBay Listing for Brandis 3243
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