| Stamp SN | B119 |
| Stamp Name | Commemorative 119 International Hydrological Decade Commemorative Issue (1968) |
| Stamp Cat Standard | Commemorative Stamps |
| Stamp Cat | Environmental Protection, Activities |
| Issue date | 1968-06-06 |
| Suspersion date | |
| Dimension of stamps(mm.) | |
| Size of souvenir Sheet (mm.) | |
| Printer | China Engraving & Printing Works, R.O.C. |
| Drawer | |
| Designer | Wen Hsueh-ju |
| Photographer | |
| Engraver | |
| Creative Director | |
| Sheet composition | 10×5 |
| Print color | |
| Process | Deep etch offset |
| Paper | 76-lb 〝郵〞(post) watermarked paper with red-blue fiber |
| Back | |
| Perforation | 11 1/2 |