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Theorica eclipsis lunaris [and] Theorica eclipsis solaris Size:XS: 40 x 30cm Abacus-like mathematical instrument consisting of

SKU 37481586462
4.3
Theorica eclipsis lunaris [and] Theorica eclipsis solaris Size:XS: 40 x 30cm Abacus-like mathematical instrument consisting of
Theorica eclipsis lunaris [and] Theorica eclipsis solaris Size:XS: 40 x 30cm Abacus-like mathematical instrument consisting of
Theorica eclipsis lunaris [and] Theorica eclipsis solaris Size:XS: 40 x 30cm Abacus-like mathematical instrument consisting of
Theorica eclipsis lunaris [and] Theorica eclipsis solaris Size:XS: 40 x 30cm Abacus-like mathematical instrument consisting of
Description

Abacus-like mathematical instrument consisting of 384 moving squares intended for calculation

here styled Torpedo ocellata

bearing the City arms

The animal is native to South America and is shown hanging from a tree-branch using one forelimb and tail

Theorica eclipsis lunaris [and] Theorica eclipsis solaris Size:XS: 40 x 30cm Abacus-like mathematical instrument consisting ofEclipse illustrations from an edition of Georg Peurbach's Theoricae novae planetarum. First published in 1454, the book remained in use as an important astronomical text throughout the 16th century. Bound in Sphaera mvndi, by Johannes de Sacrobosco (1490). Original: woodcut engraving. 1490

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