Perpetual Calendar and Altitude Sun Dial
by I-Basic
£ 9.99
This vertical disc dial has two sides: an altitude sundial and a perpetual calendar, which is the one depicted.
The calendar consists of three rotatable discs set on top of the main disc with a date scale and a lunar age scale among other features.
Made in France (1650-1700), is at the National Maritime Museum, London.
This vertical disc dial has two sides: an altitude sundial and a perpetual calendar, which is the one depicted.
The calendar consists of three rotatable discs set on top of the main disc with a date scale and a lunar age scale among other features.
Made in France (1650-1700), is at the National Maritime Museum, London.
The calendar consists of three rotatable discs set on top of the main disc with a date scale and a lunar age scale among other features.
Made in France (1650-1700), is at the National Maritime Museum, London.
This vertical disc dial has two sides: an altitude sundial and a perpetual calendar, which is the one depicted.
The calendar consists of three rotatable discs set on top of the main disc with a date scale and a lunar age scale among other features.
Made in France (1650-1700), is at the National Maritime Museum, London.