The eight-inch dildo, with a wooden head, was discovered during an excavation dig at an old school of swordsmanship in Gdansk, Poland.
A spokesman for the Regional Office for the Protection of Monuments in Gdansk said: “It was found in the latrine and dates back to the second half of the 18th century.
CEN18th century sex toySex toy: The eight-inch dildo dates back to the 18th century
“It is quite thick and rather large, made of leather and filled with bristles, and has a wooden tip that has preserved in excellent condition. It was probably dropped by someone in the toilet.
“Whether that was by accident or on purpose is anyone’s guess though.”
Archaeologists at the site earlier discovered old swords leading them to suspect that the place was once a school of swordsmanship.
The sex toy has now been taken away for preservation work.
Dildos have been found in some form throughout history, with Upper Palaeolithic artefacts previously discovered thought to have been used for sexual pleasure.
And an Austrian museum even has the world’s oldest condom on display together with four other condom fragments dating from around 1650.
These too were found in a toilet in Dudley Castle in the West Midlands.