Web sleuths spot British Museum gaffe online
The museum described "Her Hakki Mahfuzdur" as "Turkey's largest producer of postcards".
However a Turkish diplomat on Twitter stated the saying means "all legal rights reserved" - and isn't the a stationery company.
The British Museum responded: "Whoops! Thank you for pointing this out."
The institution continues to be uploading pictures of its collection online throughout the coronavirus pandemic, and give people a method to access artefacts digitally during lockdown.
The postcard error was spotted by Kutluhan Celik, who works in the Turkish secretary of state for foreign matters in Ankara.
Euronews journalist Michael Daventry tweeted the British Museum to indicate the mistake.
The museum responded: "We take presctiption it. We are always searching to enhance our col...