2011-03-252011-03-254-9-99 17:1998https://hdl.handle.net/1911/57918The origin of the image is Domestic. Watermark Unknown.DrawingengDomesticChong Wen Men, Map of Beijing Metrosubwaymapa98bsubwaymapa98b［missing text］ [Map of Beijing Metro]Metro ServicePublic Service AdsChong Wen Mennewspapers [报纸]