"[Volvelle] Instrumento Astronomico que Contiene Muchos…", Galluci, Giovanni Paolo
Subject: Cartographic Miscellany
Period: 1657 (circa)
Publication: Theatro del Mundo ye del Tiempo
Color: Hand Color
6 x 6 inches
15.2 x 15.2 cm
Volvelles were used to solve problems concerning the calendar, tide tables, the rising and setting of the sun, moon, stars, and the positions of planets. This example consists of four moving parts all attached with a red satin ribbon. An extremely interesting apparatus, more amazing for the fact that it is still fully functional. On page (7 x 10.5) with Spanish text.