1949年1月24日北京经上海转空路寄英国航空封, 贴邮资一圆四角五分, 销北京日戳, 有紫色上海转航框型戳; 封背有1月30日香港中转戳. 保存良好.China Covers and Cancellations Air MailInternational Onward Airmail Transmission from Shanghai: 1949 (24 Jan.) envelope to England bearing $1.45 franking tied by Peking c.d.s., with the grey-blue Par Avion etiquette tied by a good strike of the boxed "Arrived in Shanghai, Airmail Transmission" struck in purple; Hong Kong transit (30.1) on the reverse. Fine. Just underpaying double weight for postage 16c, internal airmail 50c. and international postage 80c.
