Description
A CRICHTON & SON BRASS TRIPLE CIRCLE SEXTANT, ENGLISH, LATE 19TH CENTURY, signed Crichton & Son and B J H Adamson R.N., with silvered scale and vernier, magnifier, two sets of coloured filters and shaped mahogany handle, in fitted mahogany case with two telescopes, sextant 6in (15cm) radius case 4...