A collection of over twenty patent designs for educational children's toys of the 1970s and '80s, most never brought to market. Patent drawings are a fascinating medium for amateur idealism and ambition. That idealism goes double when paging through patent applications of the ‘70s and ‘80s looking at – for lack of a better term – “progressive toys." These ingenious, eccentric objects, designed both by professionals and amateurs, really highlight the interest in open-ended play that flourished in the post-Aquarian era before the market was flooded by plastic TV cartoon tie-ins. Illustrated with three-dimensional digital renderings. Saddle stitched, 5.5" x 8.5". Product number BP011.