清代民国时期实寄封15件,包括上海工部封,邮政公事封,帆船邮资片,伪华北实寄封,金元邮票国际航空封,贴票包裹单,满洲里挂号封等,内容丰富,整体保存完好,市场价值高,请预览;ChinaCollections and RangesPostal History1921-49 a small range of covers including 1921 registered cover from Manchuria to Harbin, 1940 cover from Futsing to U.S.A. and stationery card used, postal receipts etc., good to fine.