ASTRONOMICAL CLOCK, PRAHA, watercolor and ink sketch

ASTRONOMICAL CLOCK, PRAHA, watercolor and ink sketch.
Made in 1410, later perfected by the Master Clockmaker Hanuš, this clock was an incredible marvel of technology in its time, even today, combining technique with astrology and ancient religious symbols.  Lots of people wait every hour to see the 12 apostles march around, and hear the strikes of the hour. It surprised me that at ONE O'CLOCK, there was not ONE bell, but THIRTEEN. So it continues with "military time" till 24:00 hs = 24 bells striking. Beautiful! It is located in downtown Prague.