Quarter farthing have a purchasing power of between 3p and 4p (£0.03 to £0.04). Quarter farthing The British quarter farthing (d) coin was a unit of currency equaling one sixteenth of a penny ( of a pound sterling). It was produced for circulation in Ceylon in various years between 1839 and 1853, with proof coins being produced in 1868. It is the smallest denomination of pound sterling coin ever minted. The coin is considered to be part of British coinage because it has no indication of what country it was minted for, being made in the same style as the contemporary half-farthing
Quarter (unit) quarter (qr. av. or quartier) came to mean ¼ of a hundredweight: 2 stone or 28 avoirdupois pounds (about 12.7 kg). In measures of dry volume, it was equivalent to the seam or 8 bushels of 8 grain gallons of 272 cubic inches. In measures of liquid volume at the time of the Magna Carta, the quarter of wine was (originally) ¼ tun: 8 London bushels or 64 wine gallons. The tun was subsequently defined down 4 gallons to 252 and the quarter was effectively ¼ pipe or butt. The quarter of wine was a gallon larger than a hogshead.