

C1674: Feel like flowers, C1675: Feel like the sky, C1676: Read letters together
| Issue | Letter Writing Day 1998 (50 yen) | |
| Date of Issue | 23 July 1998 (Heisei 10) | |
| Denomination | 50 yen x 2 | |
| Quantity | 50,000,000 se-tenant pairs | |
| Designs | C1672: "I'm writing a letter" | C1673: "I got a letter" |
| Image Area | 24.5 x 33.0 mm, vertical | |
| Printing | Photogravure in 5 colours | |
| Sheet | 20 stamps (4 x 5) Picture of the sheet | |
| Designer | Dick Bruna | |
| Layout | Motoharu Morita | |
| First Day of Issue Postmark | Tokyo Central Post Office | |
| Issue | Letter Writing Day 1998 (80 yen) | ||
| Date of Issue | 23 July 1998 (Heisei 10) | ||
| Denomination | 80 yen x 3 | ||
| Quantity | 15,000,000 sheet of ten 80 yen | ||
| 6,000,000 copies | 6,000,000 copies | 3,000,000 copies | |
| Designs | C1674: "Feel like flowers" | C1675: "Feel like the sky" | C1676: "Read letters together" |
| Image Area | 24.5 x 33.0 mm, C1674-1675: vertical, C1676: horizontal | ||
| Printing | Photogravure in 5 colours | ||
| Sheet | 10 stamps (2 x 5) Picture of the sheet | ||
| Designer | Dick Bruna | ||
| Layout | Morita Motoharu | ||
| First Day of Issue Postmark | Tokyo Central Post Office | ||
Japanese Stamp Specialized Catalog (JSCA) & SAKURA Catalog numbers
are adopted.

| Issue | Letter Writing Day 1998 Souvenir Sheet | Letter Writing Day 1998 Booklet |
Letter Writing Day 1998 Pane |
| Date of Issue | 23 July 1998 (Heisei 10) | ||
| Contents | Souvenir sheet of "Read letters together" (C1676) |
Booklet of 50 yen x 4 (C1672 x 2, C1673 x 2), and \80 x 6 (C1674 x 2, C1675 x 2, C1676 x 2) |
Pane of 50 yen x 4 (C1672 x 2, C1673 x 2), and 80 yen x 6 (C1674 x 2, C1675 x 2, C1676 x 2) |
| Price | C1678: 80 yen | CB22: 680 yen | CP20: 680 yen |
| Quantity | C1678: 1,000,000 sheets | CB22: 800,000 booklets | CP20: 800,000 panes |
| Size | Souvenir Sheet 93.5 x 72.0 mm, horizontal |
Booklet Cover 86.0 x 56.1 mm, horizontal |
Pane 192.5 x 56.1 mm, horizontal |