| Time Period Manufactured | Pre-1930 |
|---|
Check the listing for details. 1876 Young & Sons Solar Compass - Missing Solar Attachment. Listed at 1650.00 USD. Over the next several years Young worked closely with Burt, constantly modifying the design until by 1840 they had achieved a truly successful solar compass. In 1830 Young applied for a patent on an improved vernier compass.
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