收件人总付邮费信封(图1),这是一枚通过邮政局批准、登记,寄件人可免贴邮票而由收件人总付邮费的专用信封。邮简(图2)是解放初期中国人民邮政发行,全国通用,封上印有邮资,不需另贴邮票。同时,为了方便寄件人,在邮简内页可书写通信内容,信封信纸合一,交寄前 The recipient will pay for the postal envelope (Figure 1), which is a special envelope approved by the post office, registered, and free of stamps by the sender. The postal code (Figure 2) was issued by the Chinese People’s Post in the early days of the liberation, and was used nationwide. The postage was printed on the seal and no separate stamps were required. At the same time, in order to facilitate the sender, in the mail can be written within the page communication content, envelope letterhead unity, before delivery