Berlin: Bi-defus Ḥevrat ḥinukh neʻarim; Jüdischen Freyschule.  1786. First edition. After leaf 10, numbering reverts to 1 and the text of Maimonides' Hilkhot Ḳidush Ha-Hodesh begins; Naṿeh Kodesh continues as a commentary to it. In contemporary half cloth. (4°); (2), (10),(41) leaves and one folded, engraved page of geometric diagrams. Binding rubbed and bumped, light foxing throughout. Ink stain on title page. Overall a good copy.
Waltsch’s work on geometry, trigonometry and astronomy, woth his commentary to Maimonides’ Sanctification of the Month.