Having a value or cost of eighteenpence.(adjective)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "eighteenpenny" in a sentence
"On his head he wore one of the common eighteenpenny French skull – caps, with a gaudy tassel dangling therefrom, very happily in keeping with a common fustian coat."
"With a shilling or an eighteenpenny message or small parcel in hand, his courage always high, rose higher."
"Clubs and the Park, and be discovered, very happy and affable, at an eighteenpenny ordinary in Billingsgate: another gentleman, of great learning and wit, when outrunning the constable (were I to say he was a literary man, some critics would vow that I intended to insult the literary profession), once sent me his address at a little public-house called the “Fox under the Hill,” down a most darksome and cavernous archway in the Strand."