It shall be unlawful for any person, firm, association or corporation, as a condition to any sale, allocation, consignment or delivery for resale of any paper, magazine, book, periodical or publication to require that the purchaser or consignee receive for resale any other article, book, or other publication which is obscene; nor shall any person, firm, association or corporation deny or threaten to deny any franchise or impose or threaten to impose any penalty, financial or otherwise, by reason of the failure or refusal of any person to accept such articles, books, or publications, or by reason of the return thereof.