PRAHA CELESTIAL CLOCK is part of the "Clockwork" series of flip-book animated playing cards by fig. 23, designed and animated by Stephen W. Brandt.

Manufactured in the USA by USPCC (Bicycle), it features a six-month cycle of the historic Orloj celestial clock in Prague which was completed in the 15th century at has multiple functions.

The overall design, including the custom pips, are based upon both the original clock details and the Art Nouveau style unique to the region. It features two different Jokers based upon the Czech "Devil" archetype which is a part of their Christmas iconography.