'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

Brandis 2763 Box Label


eBay Description of Brandis Sextant #2763


Description of Brandis 3193, Smithsonian web page


Description of Brandis 3239, Invaluable web page


eBay Listing for Brandis 3243
