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436333001
Astrolabe; brass; a) rim with outermost circle inscribed with Latin names of winds; rete with 27 pierced star-pointers; womb marked with equator and tropics; three plates; almucantars every two degrees; azimuths every ten degrees; lines for unequal hours of night and Houses of Heaven; b) outermost ring 0-90-0-90-0; signs of zodiac and degrees; calendar of months and days; equinoxes at 10.5 March and 14 September; centre: curved lines of unequal lines in upper half surrounding twin-headed eagle; shadow scales of umbra recta and umbra versa; signature; alidade without sights.
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