Worn but complete roundball is the kind James Naismith used at the Y.M.C.A. to teach youngsters his new game, intended to keep kids active through the cold winter months. Lacing must have caused an erratic bounce here and there. Leather has peeled away from the bladder in one place, but one can't be too terribly particular with condition when dealing with one of only a handful of 19th century basketballs on earth.