Engraved brass equatorial sundial with compass. Octagonal body with recessed compass, surrounded by engraved floral decoration. Verso compass box with engraved pole indications for over 7 cities, from Amsterdam to Petersburg. Signed "And Vogl". By Andreas Vogler (around 1730 - 1800). Hinged hour ring and degree arch. Glass minimally chipped; d. 6.5 cm. Cf. Dirk Syndram, Wissenschaftliche Instrumente und Sonnenuhren, no. 84 - no. 86. Provenance: Dissolution of an important German private collection - Part II. A German brass pocket sundial by Andreas (around 1730 - 1800). Glass minor chipped. Augsburg. Around 1780 - 1790.