| Stamp SN | A023 |
| Stamp Name | Def 023 Dr. Sun Yat-sen Issue, 2nd London Print (1931) |
| Stamp Cat Standard | Definitive Stamps |
| Stamp Cat | Chiefs Of State, Emblems |
| Issue date | 1931-01-01 |
| Suspersion date | |
| Dimension of stamps(mm.) | |
| Size of souvenir Sheet (mm.) | |
| Printer | Thomas de 1a Rue & Co., Ltd., London |
| Drawer | |
| Designer | |
| Photographer | |
| Engraver | |
| Creative Director | |
| Sheet composition | D23.1-23.4 10×20 D23.5-23.7 10×5 |
| Print color | |
| Process | Intaglio |
| Paper | |
| Back | |
| Perforation | 12 1/2 |