Chinese Needham Type-B Fruitwood Diptych, c.1770-1880 scarce and the like

and the like

Sticker Reads: ‘CHICAGO APPARATUS CO

with original fitted compass cover

with dated sticker of sale

Dimensions: 15" x 11" x 13"

Chinese Needham Type-B Fruitwood Diptych, c.1770-1880 scarce and the likeChinese Needham Fruitwood Type B Diptych. This sundial is based on the Chinese solar calendar, Jiegi, and lists the 24 solar terms of the year from, Duxue meaning Great Snow, to Xiazhi (i. e. summer solstice). Intended to be adjusted throughout the year to account for seasons. Days were divided into 12 equal units, or double hours, known as Shi, which range from Tzu to Hai. Further divisions within this time standard such as Ke and Fen (exact