細節
A late 19th-Century surveyor's compass,
by JAS MURRAY & Co. ROYAL EXCHANGE LONDON & CALCUTTA, with silvered compass dial, the limb with level and cross-bubble and twin folding sights, the cover with engraved scale for DIFF. OF HYPO. & BASE, in fitted mahogany case -- 12¼in. (31.3cm.) wide; two marching compasses; and a military-pattern brass-cased compass clinometer
See Illustration (part lot) (4)
by JAS MURRAY & Co. ROYAL EXCHANGE LONDON & CALCUTTA, with silvered compass dial, the limb with level and cross-bubble and twin folding sights, the cover with engraved scale for DIFF. OF HYPO. & BASE, in fitted mahogany case -- 12¼in. (31.3cm.) wide; two marching compasses; and a military-pattern brass-cased compass clinometer
See Illustration (part lot) (4)