Air 11 Cheng Cheng-kung Air Mail Issue (1950)
| 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 |
| Suspersion date | 民國50年12月16日 |
| Dimension of stamps(mm.) | |
| Size of souvenir Sheet (mm.) | |
| Printer | Taiwan Office of the Dah Tung Book Co. |
| Drawer | |
| Designer | |
| Photographer | |
| Engraver | |
| Creative Director | |
| Sheet composition | 10×20 |
| Print color | |
| Process | Offset |
| Paper | 60-lb native woodfree printing paper |
| Back | Gumless |
| Perforation | 點線齒 |
Description
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).