Vintage 1971 Linjo educational card game/puzzle

Linjo is a vintage Ravensburger game from 1971. It’s for 1-3 players, ages 3 and up. Description from the instruction sheet included: “With its brightly coloured cards and well-balanced line patterns, this game interests and encourages free creative arrangement. The white lines, in two variations, liven the cards and link themselves into attractive graphic forms. The adaptability of the cards offers many possibilities of play. Most important is free play in which the child - fully engrossed - is surprised with the line patterns and colour schemes he produces.” The game is complete; it includes 60 cards and instruction sheet in German, French, Italian, English and Dutch. Box size: approx. 7.5 x 7x5 inches Good vintage condition. Some minor wear on the edges of some cards, some small cracks in the tray that holds the cards, and signs of wear/black marker on the box.