A set of six posters, published by the Chinese People's Liberation Army Chongqing Municipal Public Security Bureau, Legal Military Control Commission Fire Branch in 1967.
The Mao quotation reads "Do your work carefully. It has to be too detailed, not too rough, because rough things often lead to mistakes."
The Mao quotation hanging on the wall has been crossed out by a previous owner.
The text reads "Someone needs to take care of drying clothes, and it is important to take care of the fire source."