Tailor's squares and curves

Tailoring workshop this evening ... set of ancient tools from a French tailor, consisting of 3 wooden squares and a curved drawing ruler. One of the squares has a slight chip on one tip, otherwise the tools are in excellent condition as found. They are curious and very interesting pieces of furniture to display. Dimensions: the squares measure 38 x 21.5, 22.5 x 22.5 and 30.5 x 17.5 respectively. The curved ruler is 35 centimeters long.