Universal equinoctial ring dial. An universal ring dial first part of the 18th century crafted of brass 9 2 cm in overall diameter. Only the date and one s latitude are needed to determine the.
Vintage Universal Equinoctial Ring Dial 1987 Frankling Mint Collectible Ebay Mint Ebay Franklin Mint
Universal Equinoctial Ring Dial 1987 Franklin Mint Brass Wood Vintage Sun Dial Franklin Mint Decor Collection Neo Victorian
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Johann Michael Vogler Universal Equinoctial Dial For Latitudes 0 90 North Early 18th Century Brass Ellingen Germany Cadran Solaire Oeuvre D Art Astrolab