2011-03-252011-03-258-6-99 9:02002https://hdl.handle.net/1911/58779The origin of the image is Domestic. Watermark Unknown.DrawingDomesticBeijing Public Safety Poster,safetypostera02bsafetypostera02b让首都的天空永远清澈、湛蓝！禁止燃放烟花爆竹！ [Keep the capital's sky clear and blue for ever. No fireworks. Beijing Public Security Bureau. Tip hotline. ]SafetyPublic Service AdsBeijing Public Safety Posternewspapers [报纸]