top of page
15 Inch Grote mahoniehouten Sextant Kings Patent met keerbare handvat, 1790
Gregory & Wright, London
Maker:
Collectie:
NavigArte
Zeer grote sextant, die zowel verticaal als horizontaal kan gebruikt worden voor hoekmetingen.
1/1
Very large Ebony Frame with Brass index arm and fittings.
Ivory plate. Double sided bras scale.
Handle in Lignum Vitae, can be positioned in vertical or horizontal fixed position.
Both Gabriel Wright and Henry Gregory held royal patents for navigational instruments, This "Kings Patent" refers to the index mirror: Kings patent Platform of index mirror can be rotated by a setscrew.
bottom of page