Copper coin to 30 mm – Fabri Armorum

PDF) Iron in Archaeology: Early European Blacksmiths (Pleiner 2006) CPSA Comité Pour la Sidérurgie Ancienne and Digital library Bohemia

Plate Ep Copper - Canada

Solid Copper Oval Vessel Sink Countertop Bathroom Basin, Antique Hammered Finish

Edinburgh History of Ancient Rome) Harries, Jill-Imperial Rome AD 284 To 363 - The New Empire-Edinburgh University Press (2012), PDF, Constantine The Great

Ancient Armour and Weapons in Europe , John Hewitt

AM Au-10 Foil 50% Au / 50% Cu BVAu-10- BAu-10 50% Gold 50% Copper – Alexy Metals

Coin collection - Museum of Antiquities - Arts and Science - University of Saskatchewan

Viking seax battle-ready

Coronations

II. Finds Reported under the Portable Antiquities Scheme, Britannia

CuNi7Si2Cr1 - Copper Nickel Silicon - CuBe2 substitute