Creative Playthings Nesting Wooden Boxes

“Each of these new Creative Playthings blocks fits inside the next size to make a compact nest 5½” x 5½” x 5½”. Each fits on top of another to make a 17½” high tower. Each has its own peek holes for see-through fun. These rugged blocks are built to last. Attractively finished in clear lacquer and orange; ⅜” hardwood with interlocking corners.”

– 1965 Creative Playthings Catalog