Wiktionary
fourpenny
a. (context dated English) Costing fourpence.
WordNet
fourpenny
adj. used of nail size; 1 3/8 in or 3.8 cm long
Usage examples of "fourpenny".
He had taken me aside one day and promised me a silver fourpenny on the first of every month if I would only keep my "weather-eye open for a seafaring man with one leg" and let him know the moment he appeared.
They'd pawn something to raise the money for food and the bed, then she'd find her little girl and try to get more cash, and if that didn't work, then she'd jolly well find some drunken Welshman who wanted a quick fourpenny knee trembler and trade herself for a translation of Annie Chapman's letter.