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What you get
Seize the day with this mechanical flip calendar that can be used year after year. Construct the date and day-of-the-week tumblers, add the month dial, then put them all together using a marvelous mechanism called a Geneva drive. Explore the evolution of perpetual calendar design, then read about some kooky calendar calamities through the ages (from skipped leap years to the Y2K bug)!
Product line:eureka Crate