Birmingham Mint presses and six planchet presses for making blanks from strip metal. These were installed at the Bath Street works, and in that year trade tokens were struck for use in Australia. In 1851 coins were struck for Chile using the letter "H" as a mintmark. The same year copper planchets were made for the Royal Mint to make into pennies, halfpennies, farthings, half-farthings and quarter-farthings. In 1852 the Mint won a contract to produce a new series of coins for France. In this the Mint pioneered the minting of bronze. Ralph Heaton III (son of Ralph II) took key workers
Metal roof Metal roof A metal roof is a roofing system made from metal pieces or tiles characterized by its high resistance, impermeability and longevity. It is a component of the building envelope. Zinc, copper and steel alloys are commonly used. Copper has played a significant role in architecture for thousands of years (see: copper in architecture). In the 3rd century B.C., copper roof shingles were installed atop the Lovamahapaya Temple in Sri Lanka. The Romans used copper as roof covering for the Pantheon in 27 B.C. Centuries later, copper and its alloys were integral in European medieval architecture. The copper roof