Section 13. Upon the trial of a person charged with any of the crimes mentioned in the preceding section, a ticket or share of a ticket, or other writing or thing before mentioned, which the defendant has sold or offered for sale, or for which he has received a valuable consideration, shall be deemed false, spurious or fictitious, unless the defendant proves that the same was true and genuine, duly issued by the authority of some legislature within the United States, that such lottery was existing and undrawn and that such ticket or share thereof, or other writing or thing before mentioned, was issued by lawful authority and is binding upon the person who issued the same.