The Astronomical Observatories of Jai Singh c6.s1.t1.31

c6.s1.t1.31

(a) The upper half of the periphery is graduated into degrees, etc.
(b) The South East quadrant² consists of a graphic table of sines.
(c) The South West quadrant² is inscribed with declination graphs, etc.
(d) Shadow scales (lower periphery and central rectangle).
(e) Tables of signs, mansions, planets, terms, faces, etc.; generally contained in the inner semi-circles of the lower half of the disc.