Fine Ottoman Quadrant signed and dated to A.H.1290 / A.D.1873–4

Fine Ottoman Quadrant signed and dated to A.H.1290 / A.D.1873–4

Stock Number: 028


Beautifully inscribed Ottoman quadrant, probably Turkish, signed "Muddaris Zadeh" and dated to A.H.1290 / A.D.1873–4



Country of manufacture


Categories: Scientific, Calculating, Portable Sundials, Timekeeping


Wooden quadrant with markings in red and black, gilt decoration, red painted edges, the obverse with stereographic projection and diagram of unequal hours drawn in red to upper right corner, the divided horizon with gilt decorations every 5°, signed ‘Muddaris Zadeh’ and dated 1290 [i.e. A.H.1290 / A.D.1873–4] in a small cartouche; the reverse with trigonometric grid with gilt decorations.

Good condition, noting only some light markings to the surface (see photographs).

Maximum radius: 180mm; thickness: 23mm.

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GB Octavo Books

Small online bookstore specializing in the history of science, trading on ABEbooks since 2006:

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