Obscene and Pandering Advertisement Mail Matter. hearings before the United States House Committee on Post Office and Civil Service, Subcommittee on Postal Operations, Ninetieth Congress, first session, on Apr. 13, 1967. Part 1 :

Committee Serial No. 90-9. Considers H.R. 426 and H.R. 8215, to require the removal from mailing lists of names of postal patrons who object to receipt of unsolicited obscene advertisements or materials.