'What do the Numbers 3500 and 1542 Tell Us? Part One', posted on 9/16/2014
 |
| Inspection Certificate on Box Lid of Buff&Buff Sextant #13030/USNO#1231 |
~~~
'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
