I believe this is the largest set of Color Cubes the Embossing Company, Albany, NY made--endless possibilities! These were made as teaching toys, intended to "teach designing, initiative, colors, concentration, symmetry, observation and patience,” but have certainly become as popular among adults as children, and iconic design objects. Really fabulous to keep on the table for infinite hours of creative diversion.
The complete set of 49 blocks are in great condition, while the box is very worn and taped together a bit on the sides. No real matter as they should immediately be taken out of the box and put to use! Box measures 8x8x1 3/8; each cube measures 1 1/16" square.