Any offense defined in this article which consists of the commission of acts relating to a lottery is no less criminal because the lottery itself is drawn or conducted without the State. This section shall not apply to any person who has in his possession or custody any paper, document, slip or memorandum of a lottery which is authorized, sponsored and operated by any state of the United States, provided that the paper, document, slip or memorandum was purchased by the holder thereof in the State wherein such lottery was authorized, sponsored and operated.