| Type | Commemorative Issues |
| Date of issue | 1991-01-25 |
| Category | First Day Cover |
| Theme | General Celebrations |
| Denomination | Not Applicable |
| Mints | Available |
| Souvenir Sheets | Not Issued |
| Remarks | 50 th Anniversary of the Institute of Chemistry -Sri Lanka 9B.L.# 304) |
