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Opthalmoscope
It is a hands-on take on a classic recreational-math problem
Slot size: standard 39mm poker chips
The puzzle is both artistic & extremely challenging to solve
Calibron 12 was the subject of The Mystery of the Calibron Twelve Block Puzzle
Mayan Calendar Round - Interactive Wooden Replica double 9 OpthalmoscopeExplore the Mayan Calendar Round, a rotating wooden replica of the ancient Mayan timekeeping system. This interactive calendar features the Tzolk'in (260 day sacred cycle) and Haab' (365 day solar cycle), allowing you to track time like the Mayans. Key Features: Authentic Design: Historically accurate and interactive. Educational & Decorative: Ideal for history lovers, educators, and collectors. Premium Craftsmanship: Made from MDF wood with a cherry
US$ 150.00
US$ 497.50
US$ 825.00
