民国时期封片7件,包括清四次片加盖中华民国新片,19年上海美国客邮局实寄封,1947年120元邮资国际明信片,1948年腾冲国际航空封等,整体保存完好,内容丰富,请预览ChinaCollections and RangesPostal History1919-47 a lot of 7 covers and postcards; included 4th 1c. postage card overprinted R.O.C.; 1919 (28 June) Shanghai to USA cover, bearing USA postage; 1947 (10 Sept.) to USA postcard etc.