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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Troughton device c.1800
From: Frank Reed
Date: 2023 Sep 15, 09:00 -0700
From: Frank Reed
Date: 2023 Sep 15, 09:00 -0700
There's an auction on ebay for an odd measuring or calculating device from about 1800, made by Troughton. It's rather small, roughly 15 cm (six inches) long. The scales are puzzling. What is it? What does it do? :)
The images here are a sample from the ebay auction. There are a few more images at the ebay listing.
Frank Reed
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