МАЭ № 7733-28. МЛ-2802

Horizontal sundial

first half of the 17th c.

brass, glass, thread, gold plate

Square box with compass in the center. Around the compass is scale of horizontal dial with thread gnomon for latitude about 49°. Scale 4-12-8 with points in 1/4 hour. In folded position the dial is used as compass. Two concentric scales are on the lid: degree one with points in 1° without numbering and rhumb one ((О)-ХII(О)-ХII).

History of Science Monuments. 14th-19th centuries. Mikhail Lomonosov Museum