DOBBIE, ENGLISH SEXTANT, XIX CENTURY

ENGLISH SEXTANT - OCTANT MANUFACTURED BY ALEXANDER DOBBIE (1843 - 1912) IN GLASGOW IN THE LATE XIX CENTURY.
 
 Complete and in good condition (see photos). Brass body with silver graduation bow (120 degrees), wooden stand and original mahogany case. Signed.
 
 Measures of the box: 28 x 28 x 12 cm.
 
 Ref: GO3