The former LNER storage wagon was found by archaeologists in Antwerp.
LNER said the archaeologists found it under a wall of an old fortress known as the Northern Citadel from the 19th century.
Consultant archaeologist Femke Martens said the wooden wagon was thought to be 100 years old.
“It’s a mystery as to how the carriage came to be in Antwerp, and unfortunately there’s very little left of the relic as it disintegrated while being excavated,” she said.
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