.jpg?w=1)
细节
A FINE EARLY 19TH-CENTURY 9½IN. RADIUS VERNIER SEXTANT AND STAND BY DOLLOND
with details including lacquered brass 'T' frame with polished arc signed Dollond London with inset silvered scale divided to 137½°, vernier with clamp and fine-screw adjustment, adjustable magnifier and sighting tube, four index and three horizon shades, mirrors and threaded mahogany handle, contained within fitted mahogany box with inset handles and securing hooks with counter-weighted lacquered brass pillar stand and tri-form base, the box -- 5½ x 15½ (14 x 19cm.)
See illustration
with details including lacquered brass 'T' frame with polished arc signed Dollond London with inset silvered scale divided to 137½°, vernier with clamp and fine-screw adjustment, adjustable magnifier and sighting tube, four index and three horizon shades, mirrors and threaded mahogany handle, contained within fitted mahogany box with inset handles and securing hooks with counter-weighted lacquered brass pillar stand and tri-form base, the box -- 5½ x 15½ (14 x 19cm.)
See illustration
出版
Ifland, P. Taking the Stars, Krieger, 1998, p.47 fig 52.
注意事项
No VAT will be charged on the hammer price, but VAT at 17.5% will be added to the buyer's premium which is invoiced on a VAT inclusive basis