A silver €10 coin issued by Ireland's central bank to commemorate James Joyce's Ulysses misquotes a line from the modernist masterpiece.
The new coin features a portrait of the author's face and a short quotation taken from the book's third chapter, into which an extra word has mistakenly been added.
The coin was launched at a private event at Newman House, St Stephen's Green – Joyce's alma mater when he was a student at University College Dublin.
The central bank's governor, Patrick Honohan, said: "The coin's design, combining portrait and concept in an original manner, reflects Joyce's standing as one of the leading figures in the modernist movement."
The quote comes from a scene when one of the two main characters, Stephen Dedalus, is walking along Sandymount Strand in the writer's native Dublin.
Joyce wrote: "Ineluctable modality of the visible: at least that if no more, thought through my eyes. Signatures of all things I am here to read."
However, on the €10 (£8.50) coin the extra word "that" is inserted into the second sentence.
The Central Bank of Ireland has limited the minting of the coin to a maximum of 10,000 units. It is on sale at the bank's Dame Street headquarters in central Dublin this week for €46.
No one from the bank was available for comment.
Every 16 June – the day on which Ulysses is set – Ireland and Joycean scholars around the world mark "Bloomsday" to pay homage to the novelist's masterwork. Fans often dress in Edwardian costume to conjure up the atmosphere of 1904 and follow Leopold Bloom and Stephen Dedalus' journeys around Dublin.