Vintage board game Calcula Interbero Mathematics in Scrabble style

Educational and strategic board game. Made in the Netherlands. Nicknamed the Scrabble of numbers, this bilingual French/Dutch game involves combining numbers and operational signs on a grid board to create mathematical equations. A retro tool for making mental calculation fun. Complete: board, stands, coloured tiles, and original interior booklet. The original cardboard box shows signs of wear on its edges, but the interior is in very good condition.