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Jason Clarke Antiques
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Early Victorian Magnetic Compass Sundial


For sale, a Nineteenth Century magnetic compass sundial of Porter’s dial.
Comprised of a brass dish base with red internal paint and a sharp central pivot rod, onto which a card dial is balanced. The card dial has a compass magnet applied to the underside using gummed paper and is positioned upon the pin through the central ferrule to allow for self-levelling and free compass movement.
The top is provided with a brass gnomon and a black white dial showing both time and compass direction and with typical fleur de Lys decoration at the North position and a star motif running around the outer circumference.
The compass dial is protected with a dome-shaped brass lid with applied label to the inside which provides the user with an equation of time meant to allow the user to adjust the reading depending on the time of the year.
This example is unnamed making it somewhat difficult to date, but the style was developed during the Late Eighteenth Century and was popularised Samuel Porter in the 1820’s. Owing to the style, I suspect this example to be of slightly later age.
Circa 1845
SellerJason Clarke Antiques
View all stock from
Jason Clarke Antiques

Private dealer
By appointment only
Newbury
Berkshire
Tel : 07815 046645
Non UK callers : +44 7815 046645
Comprised of a brass dish base with red internal paint and a sharp central pivot rod, onto which a card dial is balanced. The card dial has a compass magnet applied to the underside using gummed paper and is positioned upon the pin through the central ferrule to allow for self-levelling and free compass movement.
The top is provided with a brass gnomon and a black white dial showing both time and compass direction and with typical fleur de Lys decoration at the North position and a star motif running around the outer circumference.
The compass dial is protected with a dome-shaped brass lid with applied label to the inside which provides the user with an equation of time meant to allow the user to adjust the reading depending on the time of the year.
This example is unnamed making it somewhat difficult to date, but the style was developed during the Late Eighteenth Century and was popularised Samuel Porter in the 1820’s. Owing to the style, I suspect this example to be of slightly later age.
Circa 1845
Price The price has been listed in British Pounds.
Conversion rates as of 3/APR/2025. Euro & Dollar prices will vary and should only be used as a guide.
Always confirm final price with dealer. Sold
Category Vintage Technology
Period Early Victorian Antiques
Material Brass
Origin English
Item code as542a848
Status Sold
£0 
$0.00 
€0.00 

$

€

Conversion rates as of 3/APR/2025. Euro & Dollar prices will vary and should only be used as a guide.
Always confirm final price with dealer. Sold
View all stock from
Jason Clarke Antiques


By appointment only
Newbury
Berkshire
Tel : 07815 046645
Non UK callers : +44 7815 046645
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