Lot# 5388

1949 (Jun 10) Gold Yuan and Silver Yuan combination registered cover, from Kwangtung Swatow to San Francisco, U.S. franked on both sides SYS Golden Yuan Stamps x 23 ($411,000 Golden Yuan) and Silver Yuan x 14 (42c Silver Yuan), tied by Swatow cds. The exchange rate of Golden and Silver Yuan is around 1f: GY$137,000 then. $411,000 Golden Yuan equals to 3c Silver Yuan. Total value 45c Silver Yuan, matching the international double registered postage rate. Very rare combination cover.