Astronomical rings - Wikipedia
A FINE BRASS UNIVERSAL EQUINOCTIAL RING DIAL - Marshall Rare Books
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Astronomical Ring of an unusual type, showing the side of the instrument "Butterfield Paris". Undated, circa 1690. This instrument is closer to an equinoctial ring dial than most astronomical rings. | Wellcome Collection
The place of the UERD in the armillary section of the classification... | Download Scientific Diagram
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AN ASTRONOMICAL RING DIAL
Epact: Astronomical Ring Dial signed by Gualterus Arsenius, dated 1572
Franklin Mint Universal Equinoctial Ring Dial 1987 |Accurate Portable Timepiece | eBay
Astronomical Ring Dial – Obscuriosity
AN ASTRONOMICAL RING DIAL — catalog Valuable Books and Manuscripts | Download high quality photo | Buy at an affordable price design, poster, lot 70
Universal equinoctial ring sundial, astronomical four ring dial | Science Museum Group Collection
Universal equinoctial ring dial | Royal Museums Greenwich
Universal equinoctial ring dial | Royal Museums Greenwich
Astronomical Sundial Ring Pendant – Obscuriosity
Epact: Scientific Instruments of Medieval and Renaissance Europe | Pocket watch antique, Antique jewelry, Rings
Universal equinoctial ring sundial, astronomical ring dial | Science Museum Group Collection
Epact: Astronomical Ring Dial unsigned, 16th century
