In late 1949 John Lloyd Wright patented his Wright Blocks, an interlocking block set. These were rectilinear, cross-grooved wooden blocks packaged in “No. 1” and “No. 2” sets of 36 and 70 pieces respectively. The Wright Blocks were not only more abstract and modern than Lincoln Logs, but they were also more versatile and could be assembled into lighter, more open structures. Nevertheless, they failed to catch the public’s fancy to the same extent as their log cabin predecessors and were not produced in any great quantity.
