EQUINOCTIAL RING DIAL BY THE FRANKLIN MINT
Circa 1987
Reproduction brass universal equinoctial ring dial with a meridian ring, hour ring, rotating bridge and sliding suspension ring. Meridian ring calibrated on one side from 0 to 90. Hour ring calibrated on one side from I to XII twice. Bridge contains a sliding pinhole gnomon calibrated calendar and declination scales.
Diameter 8.125".
In the Early 17th Century, the English mathematician William Oughtred developed this instrument based on the earlier astronomer's ring, which measured the altitude of stars and terrestrial objects.

The absence of a condition report does not imply an object is free of defects. All items may have normal signs of age and wear commensurate with their
age; these issues will likely not be mentioned in the condition report. Please contact Eldred's before the auction with any condition questions. Questions about condition will not be answered after purchase. Condition reports are provided as a courtesy, and we are not responsible for any errors or omissions. Important note on frames: Frames are not guaranteed to be in the same condition as they are in the item photograph. Due to handling and shipping, many frames, especially antique ones, are prone to losses. If you have questions about the condition of a frame, please contact us prior to the auction.