Time period: 11th to 15th Century.
Materials: Leather, wooden counters in cloth bag
Product Dimensions: 20 cm width x 30 cm length.
Long before the computer and even before modern numerals were widely accepted, a counting or reckoning board with Roman numerals was used to make calculations. Using the board and counters in this tube you will be able to add and subtract, multiply and divide in the medieval way.
A great educational tool, with historical notes and full instructions.
Handily packaged in a cardboard tube