American Express Company v. Iowa…
“ When it is considered that the necessary result of the ruling below was to hold that, wherever merchandise shipped from one state to another is not completely delivered to the buyer at the point of shipment so as to be at his risk from that moment, the movement of such merchandise is not interstate commerce, it becomes apparent that the principle, if sustained, would operate materially to cripple, if not destroy, that freedom of commerce between the states which it was the great purpose of the Constitution to promote. ”
