About the book: 1965 / First edition (1965) of V. G. Gubarev's fairy tale "Clocks of Centuries" with illustrations by the artist I. L. Ushakov. Clock affairs the master of the Giants repaired the clock, the numbers on which show centuries and even entire millennia. Through the back door, located behind the pendulum of this magic clock, the heroine of the story goes to the prehistoric era - first to mammoths and saber-toothed tigers, and then to primitive people.