EditorialPortable Equatorial, Gilt and engraved brass, cut and blued steel, glass, Scrolled square frame with animal allegories of the Four Continents: camel, horse, lion and monkey; hinged quadrant, hour circle with gnomon and pendulum; in center, recessed cir...
EditorialPortable Equatorial, Gilt and engraved brass, cut and blued steel, glass, Scrolled square frame with animal allegories of the Four Continents: camel, horse, lion and monkey; hinged quadrant, hour circle with gnomon and pendulum; in center, recessed cir...
EditorialSolarium Gnomonica Horology, Sundial and Gnomon, p. 21, 1648, Emanuele Maignan: Perspectiva horaria sive de horographia gnomonica tum theoretica, tum practica libri quatuor [...]. Romae: Typis, & expensis Philippi Rubei, 1648.
EditorialSun Compass, Compass in cardan ring in a wooden box with handles. The square wooden compass boiler is weighted with a lead weight at the bottom. A tilting sundial has been erected on one side: it consists of a circle divided into two times twelve hours...