1. two sheets with drawings for patterns and drawings of the assembled model. One sheet is marked: SUPPLEMENTARY TRIHEDRAL ANGLES (/) STRIA (1)*. The second sheet is marked: SUPPLEMENTARY TRIHEDRAL ...
1. four sheets of drawings (one cut out) of pieces that may be arranged to form a parallelogram, a five-pointed star, or a square. - dated April 25, 1940. 2. drawings and pieces for a dissection of a ...
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