| Stamp SN | B193 | 
| Stamp Name | Commemorative 193 70th Anniversary of Mandarin Phonetic Symbols Commemorative Issue (1983) | 
| Stamp Cat Standard | Commemorative Stamps | 
| Stamp Cat | Education, Culture && Education, Activities | 
| Issue date | 1983-05-22 | 
| Suspersion date | |
| Dimension of stamps(mm.) | |
| Size of souvenir Sheet (mm.) | |
| Printer | China Color Printing Co. Inc., R.O.C. | 
| Drawer | |
| Designer | Lee Kuang-chi | 
| Photographer | |
| Engraver | |
| Creative Director | |
| Sheet composition | 10×10 | 
| Print color | |
| Process | Deep etch offset | 
| Paper | Locally-made mat finished, watermarked stamp paper with gum | 
| Back | |
| Perforation | 13 1/2 | 
The Mandarin Phonetic Symbols are a system for Mandarin pronunciation, which was developed in 1913 by the Chinese Pronunciation Unification Committee under the chairmanship of Mr. Wu Ching-heng. It consists of thirty seven symbols, namely, twenty one initials and sixteen finals. Generally speaking, the initial is the beginning sound of the whole syllable of a Chinese letter, while the final the rest of the syllable of a Chinese letter. For seventy years, the symbols have done much in unifying the pronunciation of Chinese words, resulting in making education universal and society harmonious.