A "farthing" is an old-fashioned British coin that was worth a quarter of a penny. It's no longer in use and is mainly used to refer to something of very little value or importance. Full definition
But the most awesome, in my opinion, was the penny farthing race. (treehugger.com)
Artist Stephen Farthing RA had a solo show, The Back Story, at the RA in 2010. (royalacademy.org.uk)
«Law firm profit margins are only notional, as they're on the basis that none of the senior managers are paid a salary — they're not even getting a brass farthing above the line. (amlawdaily.typepad.com)