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My best guess is that this is a decorative garden ornament which is vaguely 
akin to an altitude/azimuth sundial using a vertical gnomon with an 
‘interesting’ shape. I doubt that it is a serious scientific instrument. There 
was a variety of firms in the Midlands in the early 20th century making a range 
of these brass confections.

Regards to all,
John 
———
Dr J Davis
BSS Editor http://sundialsoc.org.uk/publications/the-bss-bulletin/


> On 25 Feb 2026, at 18:04, Schechner, Sara <[email protected]> wrote:
> 
> Here are a few thoughts:
>  
> AI is terrible at identifying scientific instruments.  A study has just been 
> published by Pedro M. P. Raposo and Floor Anna Koeleman, “Instruments and the 
> New Media,” in Forty Years of Scientific Instrument Studies: The Scientific 
> Instrument Commission, edited by Sara J. Schechner and Richard L. Kremer, 
> Scientific Instruments and Collections, vol. 11 (Leiden: Brill, 2025).
>  
> It cannot be a fountain because they all have shallow bowls or basins into 
> which the water falls.  Fountains don’t bubble onto flat brass plaques 
> mounted on flat surfaces. 
>  
> The finial is too short to be a surveying marker or alignment device for use 
> by an observatory. 
>  
> I think that the photo does not provide enough information at the present 
> angle to the object to tell us what it is.  As a sundial, part of the gnomon 
> could be obscured from view or broken off.  Given the shape of the upright, 
> it would not appear to be a vertical gnomon as used on an azimuth or 
> horizontal pin-gnomon dial.  And if the plate were to be equatorially 
> inclined, it would be an odd choice for a polar-aligned gnomon.
>  
> Cheers,
> Sara
>  
> Sara J. Schechner, PhD, FAAS
> Curator Emerita, Collection of Historical Scientific Instruments, Harvard 
> University
> President, International Astronomical Union Commission C3 (History of 
> Astronomy)
> https://saraschechner.scholars.harvard.edu/
> [email protected]
> [email protected]
>  
> Altazimuth Arts | Art Quilts and Sundials
> https://www.altazimutharts.com
>  
>  
> From: sundial <[email protected]> On Behalf Of Richard B Langley
> Sent: Wednesday, February 25, 2026 9:47 AM
> To: lvadillo <[email protected]>; [email protected]
> Cc: Sundial Mailing List <[email protected]>
> Subject: Re: What kind of sundial is this?
>  
> As to what the highlighted device might be, Google AI suggests it is a garden 
> fountain with a finial where the water "bubbles" out. I thought it might be a 
> hill-top marker where the finial might aid the eye in lining up a distant 
> feature with perhaps the identification of the spot being on the horizontal 
> plate. Google AI didn't think so, though.
>  
> -- Richard Langley
>  
> -----------------------------------------------------------------------------
> | Richard B. Langley                            E-mail: [email protected]         |
> | Geodetic Research Laboratory                  Web: http://gge.unb.ca      |
> | Dept. of Geodesy and Geomatics Engineering    Phone:    +1 506 453-5142   |
> | University of New Brunswick                                               |
> | Fredericton, N.B., Canada  E3B 5A3                                        |
> |        Fredericton?  Where's that?  See: http://www.fredericton.ca/       |
> -----------------------------------------------------------------------------
> From: sundial <[email protected]> on behalf of lvadillo 
> <[email protected]>
> Sent: February 25, 2026 8:40 AM
> To: [email protected] <[email protected]>
> Cc: Sundial Mailing List <[email protected]>
> Subject: Re: What kind of sundial is this?
>  
> External message: Use caution.
> Can you pass de geographical coordinates of such an interesting place? I 
> would like to locate it accurately.
> Regards, Luis
> 
> From: sundial <[email protected]> On Behalf Of Steve Lelievre
> Sent: Friday, November 28, 2025 5:25 PM
> To: Sundial List <[email protected]>
> Subject: What kind of sundial is this?
> My wife's sister sent me a photograph of a weird "Sundial Graveyard" that she 
> encountered while hiking on Dartmoor, England. 
> 
> I've uploaded the full photo to https://gnomoni.ca/sundialGraveyard.jpg
> 
> One of the items is shown below. Anyone know what it is? I can't figure out 
> if it is a sundial or not.
> 
> <image001.png>
> 
>  
> 
> Cheers,
> 
> Steve
> 
>  
> ---------------------------------------------------
> https://lists.uni-koeln.de/mailman/listinfo/sundial
> 

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