It shall be unlawful for any such corporation or association to send, deliver, mail or transmit to any person in this state who is not a member of such corporation or association any anonymous letter, document, leaflet or other written or printed matter, and all such letters, documents, leaflets or other written or printed matter, intended for a person not a member of such corporation or association, shall bear on the same the name of such corporation or association and the names of the officers thereof together with the addresses of the latter.
New York Legal Code