拍品號碼 5382

1949年5月23日金銀圓混貼中式封自貴州平壩掛號寄重慶， 正面單貼平信單位銀圓郵票，用來支付銀圓4分國內平信郵資。背貼金圓票2枚（有掉票），合6萬金圓。是時金銀圓兌換率約為15萬金圓兌1分銀圓，此封不足以支付當時銀圓12分的掛號郵資，估計有掉票。正背郵票均銷貴州平壩日戳，並有重慶到達戳。雖有掉票，但此封仍是罕有的金銀圓混貼封。 franked Domestic Ordinary Mail Unit Stamp x 1 on front, used to pay for the domestic ordinary postage. Golden Yuan Stamp x 2 valued $6,000 Golden Yuan. The exchange rate of Golden and Silver Yuan is around 1f: GY$150,000 then. The stamps on the cover was not enough to pay for registered postage, 12f Silver Yuan which might have some stamps off, still a rare mixed franking cover with Golden and Silver Yuan Stamps.