Hi,

It sounds to me like a reference to what is sometimes called an Aquitaine
Ring (because of a story that Elenor of Aquitaine gave one to her husband
to be). Also known as a Farmer’s Ring.

Modern ones are readily available. Just search the internet for “Aquitaine
Ring”

Steve



On Sat, 28 Sep 2024 at 20:53, Donald Christensen <dchristensen...@gmail.com>
wrote:

> In the book,
>
> Sundials: Their Theory and Construction Paperback – 1 June 1973
>
> by ALBERT WAUGH (Author)
>
>
> He explained a portable sundial that worked similar to a shepard’s dial.
> Instead of a gnomon that cast a shadow on the pillar, this looked more like
> a ring. Instead of a shadow that told the time, a beam of light showed
> through a hole in the ring. There were groves on the inside of the ring.
> Time was read by inspecting wherever the beam of light touched one of these
> grooves. The ring would hang from a string.
>
>
> Does anyone have any information about this sundial?
>
> Cheers
> Donald Christensen
> 0467 332 227
>
> If you focus on what you lack, you'll lose what you have. If you focus on
> what you have, you gain what you lack.
> ---------------------------------------------------
> https://lists.uni-koeln.de/mailman/listinfo/sundial
>
>
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