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 ...
IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. When the Scheutz difference engine ...