Sextant - Ebony - Hughes London - Unique ebony sextant #antique instrument #ebony #hughes london #maritime tool #Nautical #navigation #scientific instrument #sextant #vintage navigation
Micrometer sextant - Alloy - observator #alloy construction #celestial navigation #collectible #maritime tool #measurement device #micrometer sextant #nautical equipment #navigation instrument #surveying #vintage instrument
