The stamp on this cover is Beachy Head Lighthouse. This stamp was issued on 14th June 1985.
The stamp on this cover feature Dondra Head Lighthouse, the Southern most point of Sri Lanka. I thank the Post Master of Dondra Head (Devinuwara) for returning the cover back to me. He was good enough to place a special date stamp which is available only for letters posted from the post box placed at the location of the lighthouse.
This stamp was issued on 13th September 2017.
The stamp on this cover is the Point Pedro Lighthouse, the Northern most point of Sri Lanka. I thank the Post Master of the Point Pedro Post Office for returning this cover to me posted from Point Pedro.
The stamp was issued by Sri Lanka Post on 26th November 2018.