Astronomical Ring of an unusual type, signed "Butterfield Paris". Showing the opposite side of the instrument to that on which Butterfield's signature occurs. Undated, circa 1690. This instrument is closer to an
Epact: Astronomical Ring Dial signed by Gualterus Arsenius, dated 1572
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Mid 18th Century Brass Astronomical ring dial. - Gilai Collectibles
Epact: Astronomical Ring Dial unsigned, late 16th century
A rare Ottoman brass equinoctial ring dial, signed by Mahmud Bey al-Falaki, Egypt, dated 1291 AH/1874 AD | Arts of the Islamic World & India including Fine Rugs and Carpets | 2021 | Sotheby's
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Astronomical rings - Wikipedia
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
Epact: Astronomical Ring Dial signed by Antoine de Succa, dated 1600
Universal equinoctial ring dial | Royal Museums Greenwich
Franklin Mint Universal Equinoctial Ring Dial 1987 |Accurate Portable Timepiece | eBay
16th Century German Astronomical Ring | A Token of Love – Gifts for Designers
AN ASTRONOMICAL RING DIAL — catalog Valuable Books and Manuscripts | Download high quality photo | Buy at an affordable price design, poster, lot 70
astronomical dial; ring-dial; sundial | British Museum
The place of the UERD in the armillary section of the classification... | Download Scientific Diagram
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Equinoctial Ring Sundial by Henry Sutton | National Museum of American History
Universal equinoctial ring sundial, astronomical four ring dial | Science Museum Group Collection
