331st Auction , 29 June – 8 July 2019
Starting bid: 1 200 HKD
Hammer price: 3 800 HKD
1940s a group of Postal Day Expo Commemorative issues, airmail issues and ovpt. For Use in Sinkiang airmail issues, all with varieties, including imperf between and inverted ovpt variety. Some may be fake. Need careful inspection.