Air 11 Cheng Cheng-kung Air Mail Issue (1950) (C011)

Stamp SN : C011
Stamp Name : Air 11 Cheng Cheng-kung Air Mail Issue (1950)
Stamp Cat Standard : Air Mail Stamps
Stamp Cat : Martyrs
Issue date : 1950-09-26
Dimension of stamps(mm.) : 18x21.5
Printer : Taiwan Office of the Dah Tung Book Co.
Sheet composition : 10×20
Process : Offset
Paper : 60-lb native woodfree printing paper
Back : Gumless
Perforation : 點線齒
Suspersion date : 1961-12-16

The design is the same as that of Cheng Cheng-kung's definitive stamps.The difference is that the air mail stamps have the character〝航〞engraved on the right side of the portrait and another character〝空〞on the left side (the two characters mean aviation).