Model with two levels of difficulty. Explanations are given for the model without tallies.
For the model with tallies, the basis is the same as for the first but the realization is a little more complex.
Supplies:
This sheet contains the technical diagram and some explanations for model O.
Drawing: Odette ARPIN,
Map: Marie-Claude Espèche,
Director: Solange Blanchard
Editions Hôtel de la Dentelle - August 2022
Written in french.