| Issue | Letter Writing Day |
| First Day | July 23, 2002 |
| Value | 80 yen x 10, sheet of ten |
| Quantity | 6,000,000 copies each |
| Designs | C1870a : Ox and little bird | C1870b : Seep and boy |
| C1870c : Magnifying glass | C1870d : Girl wearing ribbons |
| C1870e : Football player | C1870f : Tennis player |
| C1870g : Letter for you | C1870h : Hasn't it come yet |
| C1870i : Red mail truck@@ | C1870j : Let us read together |
| Printing | Photogravure in 6 colors |
| Sheet | C1870 : 10 stamps sheet |
| Designer | Dick Bruna ( illustrator ) |
| Layout | Morita Motoharu ( public service designer
) |