Toor Pund

Frae Wikipedia

A Toor pund waes a unit o wecht equal tae 5400 grains (juist o'er 3/4 o an ordinar (avoirdupois) pund). The British money unit is called a "pound" acause it waes oreiginally a Toor pund o siller (worth aboot £38 to-day). The wecht standard waes cheinged tae the Troy pund (5760 grains) in 1528.