Citations:leadpig

a lump or “pig” of lead

 * 1956,, The Romans Were Here: The Roman Period in Britain and Its Place in Our History, : Frederick Muller Ltd. (second edition), page 268:
 * One of the pigs under Pius weighs 223 lb., the heaviest found in our island. And Mendips leadpigs have turned up in Gaul as well as Britain.