Universal equinoctial ring dial by unknown

Universal equinoctial ring dial


Fine art poster

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  • Amazing giclée print quality
  • 280gsm thick fine art print paper
  • 100+ year colour guarantee
  • Dimensions:
    • x cm including border ( x in)
    • x cm excluding border ( x in)

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Our prints

We use a 280gsm fine art paper and premium branded inks to create the perfect reproduction.

Our expertise and use of high-quality materials means that our print colours are independently verified to last between 100 and 200 years.

Read more about our fine art prints.

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.

Delivery & returns

We print everything to order so delivery times may vary but all unframed prints are despatched within 2-4 days via courier or recorded mail.

Delivery to the UK is £5 for an unframed print of any size.

We will happily replace your order if everything isn’t 100% perfect.

Universal equinoctial ring dial by unknown zoom

Universal equinoctial ring dial

Three-ring universal equinoctial ring dial for all latitudes. A thin ring slides inside the declination ring and carries a square with pinholes at each corner. Opposite the sights square is another square with four points indicating the places where the sun's rays should fall when the instrument is correctly aligned. This dial has an unusual transversal scale for the latitudes. It has been used to allow the small latitude scale to be divided more easily into single degrees. The ring inside the declination ring replaces the more normal alidade, which could also be used for measuring altitudes as well as showing the time of day. The quality of engraving is low, particularly on the words in the latitude table.

  • Image reference: D8857

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