10. Don't spit on the floor and don't make a mess. 11. Throw rubbish in the dustbin. 12. And wipe your feet upon entering the house.
Publisher: Glavpolitprosvet, Moscow
(Stencil, 53x110.5 cm., inv.nr. BG L3/19)

Fourth part of a Rosta. See also nrs. 11 (with commentary), 12 and 13.