The inscription on the inside of the lid of the cover reads: SUN DIAL AND COMPASS. Slip the notch in the Brass Arm over the Screw in the Lid and put the Compass on a level place to such a position that the North Point of the Needle corresponds with the mark inside the Compass Bar, the shadow of the line will show the time. The Sun Dial shows Solar or apparent time but a Clock should be set to equal or Mean time in the above Equation Table, the difference is stated in minutes. F means that the clock should be faster than the dial. The sun dial case has two brass locks, a brass hinge and a brass catch to hold the dial open.The compass has a blued needle and is covered by an intact glass shield and brass ring, and is in a fine, original, undamaged working condition. This diptych sundial is in the found condition and could use a good home. Provenance: Sotheby's October 1992. Please mouse over photos to view a high resolution images.
This antique vintage diptych sundial would make a wonderful addition to that antique scientific instrument collection when placed in a prominent position to the envy of all who observe! Please note that the photos form a part of the condition description.
This instrument is guaranteed to be an antique original, not a reproduction! The item "Antique English Fruitwood Diptych Dial, Sundial, Compass, Circa 1800s" is in sale since Sunday, June 14, 2020.
This item is in the category "Antiques\Science & Medicine (Pre-1930)\Scientific Instruments\Other Antique Science Equip". The seller is "captainmadison" and is located in Washington Crossing, Pennsylvania. This item can be shipped worldwide.