Letters lost for decades have finally been delivered.
Eighteen letters from the 1960s and 70s were discovered over the summer at a former post office in Vilnius, Lithuania, while a wall in the building was torn down, Reuters reported.
The owner of the building, Jurgis Vilutis, told Reuters he believes a postal worker probably searched the letters for money and saved them.
When the letters were found, Vilutis said he reached out to the post office, which decided to try to track down the recipients.
"I'm so glad they got interested," Vilutis told Reuters.
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The business also noted that the letters were from pen pals or relatives who had moved out of Lithuania, which was part of the Soviet Union at the time.
After months of tracking recipients - since street names and numbers have changed - post office workers in Vilnius were finally able to deliver only a few of the 18 letters last month, according to Reuters.
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Five recipients were found, and in some cases, post office workers delivered the letters to the children of the intended recipients.
"We felt a moral obligation to do this," Deimante Zebrauskaite, Lithuania Post's head of the customer experience department, told Reuters.
"A lady likened the experience to receiving a message from a bottle thrown into the sea," Zebrauskaite added.
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One recipient, Genovefa Klonovska, received a letter from a pen pal in Poland, which was stamped in 1970, when Klonovska was 12 years old.
The letter contained a handmade colored rose and two paper dolls, according to Reuters.
"I thought someone was pranking me," said Klonovska, who is in her 60s today.
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Klonovska does not remember her pen pal and thinks their relationship ended when Klonovska never received her letter, Reuters reported.
"So good that the letter was irrelevant," she told Reuters. "The loss was not life-changing."
She added: "What if they handed over a lost letter from a suitor to his love and their wedding never took place?"