China: 1949, registered airmail cover addressed to Toronto, Canada bearing SYS G
China
1949, registered airmail cover addressed to Toronto, Canada bearing SYS Gold Yuan surcharged issue $100 on $1 green, SYS Gold Yuan Dah Tung first printing $500, seven $1,000, and two Gold Yuan surcharge on revenue stamps $200 on $500, tied by bilingual cds of Chengtu dated 4 Apr 1949, with transit cds of...