SMS Box - Sequential Discovery box by Brian Young/Mr Puzzle.The puzzle box is in perfect condition and has been solved and resetThis is a limited edition puzzle, #49/130. None will ever be made again. Comes with sealed solution booklet. This is a tough SD puzzle and has a difficulty rating of 10/10. Puzzle has been kept out of sunlight in smoke free home.I will cover shipping costs.Payment preferably by wise or PayPal Friends and Family.