pig lead

English

Noun

pig lead (uncountable)

1. unrefined lead, cast in blocks called pigs
   • 1902, John Masefield, Cargoes:

     Dirty British coaster with a salt-caked smoke-stack,
     Butting through the Channel in the mad March days,
     With a cargo of Tyne coal,
     Road-rails, pig-lead,
     Firewood, iron-ware, and cheap tin trays.