Vintage Springbok Puzzle ~ Song of the Unicorn ~ Over 500 Fully Interlocking Pieces Collectable 500 Piece Puzzle ~ Unicorn ~ Fantasy Assembled size 18" x 23 1/2" ~ Short Poem on backside of box by Jeff Morgan Springbok puzzles are made from 100% recycled materials using soy-based inks Springbok puzzle pieces are 18% thicker than the industry average, unique interlocking pieces & signature piece counts. Thick, tight fitting pieces, you can pick the puzzle up unglued after assembling. (Green back)