Product images of Universal equinoctial ring dial
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Manufactured in the UK
All products are printed in the UK, using the latest digital presses and a giclée printmaking process.
We only use premium branded inks, and colours are independently verified to last between 100 and 200 years.
Universal equinoctial ring dial
Universal equinoctial ring dial for all latitudes. Standard dial (see related terms) except for the following details: a bracket moves in the grooved rim of the meridian ring. There are hour scales on both the obverse side and on the inner-rim of the equinoctial ring. There is a date scale, a declination scale and the equinoxes are marked at 20 March and 23 September. 'S' and 'N' are marked at relevant ends of the bridge and the gnomon has glass in the pinhole.
- Image reference: F1305-1
- National Maritime Museum, Greenwich, London