On the old coastal road heading for Kuala Selangor, a white, wooden building built by the British has stood the test of time.
Formerly a police station, it has since the 1920s served as the post office for Bukit Rotan.
Pos Malaysia's Selangor general manager, Khairul Nizan Che Nik, said the structure, which resembles a kampung house, was a police station from 1920 to 1926.
It was later transformed into a post office and has remained since, manned by a postmaster six days a week.
Khairul Nizan said during colonial times, the British would,
in new settlements, set up a police station followed by a post office.
This, he said, was why the police force and postal service were two of the oldest public service institutions in the country.
"In those days, postmen carried out deliveries on their bicycles, covering great distances. We salute our predecessors. It shows just how far we have come."
Today, the responsibility of being the Bukit Rotan postmaster lies with Khairul Azman Nyamin, 40, who has been with Pos Malaysia for 20 years.
He has been the town's postmaster for 1½ years.
He said he relished the challenge of being a one-man show.
"My previous four postings were at modern post offices. They were nothing like this building, which is steeped in history.
"When the Covid-19 pandemic hit last year, post offices in the country continued to provide services to the people.
"This was among the many reasons why I became a postman in the first place. I am proud and happy with what I do."
He said the post office had never failed to raise the Jalur Gemilang on National Day, even when the country was battling the pandemic.
Being the lone post office staff member in Bukit Rotan, the responsibility of raising the flag also falls on him.
"I'm the one who puts up all the flags that adorn the post office and I'm very proud to do so.
"Customers somestimes wish me 'Happy Merdeka', which I reciprocate.
"Some mention that it is very patriotic of me to do so, but I reply that it is my duty as a proud citizen.
"Many who take pictures of the post office acknowledge that it is even older than when we gained independence."
He said he received many questions from visitors about the building, which he was more than happy to entertain.
Some locals, he said, told him that they had been frequenting the post office even before he was born.
"This post office has witnessed many things, including British colonial rule, Japanese occupation, the Communist threat and the creation of Malaysia.
"This never fails to fill me with joy and pride, knowing that I work in a historic building that predates the country's independence. It motivates me to do my best."