Larry Evans 3D Maze Puzzle - Sky Pipes. This hard-to-find vintage puzzle is still sealed, new in box with no damage, 500 pieces from 1981, the Puzzle Collection, by Warren Paper Products Company, puzzle # 9403. Made In The USA, 18 X 24. There is what looks to be a little bit of puzzle dust between the box and the plastic on the bottom of the box, I included it in a picture. But there is not any damage or discoloration to the box, no warping, no dent, etc.  Please see photos for condition, and let me know if you have any questions. 
