A CHINESE PRINTING BLOCK
Early 18th century
the text block with two diagrams for eclipses -- with a letter from 1966 identifying the text as 'folio 117 of ch. 3 of the supplement to Yü-chih li-hsiang k'ao-ch'eng ... first printed in 1723'.
8½ x 12in. (22 x31cm.)
A CHINESE PRINTING BLOCK
Early 18th century
the text block with two diagrams for eclipses -- with a letter from 1966 identifying the text as 'folio 117 of ch. 3 of the supplement to Yü-chih li-hsiang k'ao-ch'eng ... first printed in 1723'.
8½ x 12in. (22 x31cm.)
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