1931 Junk 7th print 1c and 2c ovpt. "Limited to be Sent from Yunnan" PSC in a group of 3 (Han 141-142), including 1c, 2c mint card one 1c
1931 Junk 7th print 1c and 2c ovpt. "Limited to be Sent from Yunnan" PSC in a group of 3 (Han 141-142), including 1c, 2c mint card one 1c card tied by Chungkung-Yunnan first flight commemorative cds (Ex- Prescott).1931年帆船第七版1分及2分加蓋“限滇省發寄”郵資片（韓目141, 142）共三件，包含1分、2分新片及銷渝昆首航紀念日戳之1分片（Prescott舊藏）。
