in order to celebrate 135 years for HNB, a special cover was issued by Philatelic Bureau on 6th March 2024. The event took place at HNB Towers in Colombo.
The special cover can bought online: https://stamps.slpost.gov.lk/product/6123
![](https://philately.lk/wp-content/uploads/2024/03/hnb-1.png)
![](https://philately.lk/wp-content/uploads/2024/03/hnb-2-1024x720.png)
Above 2 Images courtesy LMD fb page