Ivory Diptych Sundial Equinoctial, Lunar And Horizontal 17th Century

Very beautiful Dieppe sundial, equinoctial, lunar and horizontal dial Dieppe around 1650 Floral decoration and fillet frame. Compass of the dial in paper with various European cities. with hours for horizontal dial Hourly scale from 5.12 to 1.7 North, East, Mydy, West Blued needle Lunar volvelle with equinoctial dial, rotating silver disc with lunar age numbered from 1-30 Double line border with 4 poppy flowers at each angle. Latitude scale from 0 to 80 degrees divided into 10 degrees Equinoctial dial with hour circle numbered 1-12, 1-12 for use in spring and summer and central polar dial numbered 8-12, 1-4 double line border frame and poppy flowers at each angle. Small brass hooks