Section 19. Transmission by post of anything injurious prohibited

19. Transmission by post of anything injurious prohibited.— (1) Except as otherwise provided by rule and subject to such conditions as may be prescribed thereby, no person shall send by post any explosive, dangerous, filthy, noxious or deleterious substance, any sharp instrument not properly protected, or any living creature which is either noxious or likely to injure postal articles in course of transmission by post or any officer of the Post Office. (2) No person shall send by post any article or thing which is likely to injure postal articles in course of transmission by post or any officer of the Post Office. 1[19A. Transmission by post of tickets, proposals, etc., relating to unauthorised lotteries — — prohibited. No person shall send by post, - (a) any ticket, proposal or advertisement relating to a lottery; or (b) any other matter descriptive of, or otherwise relating to, a lottery, which is calculated to act as an inducement to persons to participate in that lottery. Explanation . — In this section "lottery" does not include a lottery organised or authorised by the Government.] — — 20. Transmission by post of anything indecent, etc., prohibited. No person shall send by post (a) any indecent or obscene printing, painting, photograph, lithograph, engraving, book or card, or any other indecent or obscene article, or (b) any postal article having thereon, or on the cover thereof, any words, marks or designs of an indecent, obscene, seditious, scurrilous, threatening or grossly offensive character.