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Here are some of the recognized Johnson Matthey Logo
London Refinery
London Refinery
London Refinery
Salt Lake City
Photo credit free-bullion-investment-guide.com
Johnson Matthey & Mallory
Photo credit free-bullion-investment-guide.com
Photo credit JH
Early certification marks use sometime between 1955 and 1958 until 1963.
Johnson Matthey & Company
BRUSSEL & PAUWELS
Photo credit free-bullion-investment-guide.com
Johnson Matthey London
Johnson Matthey Australia
Johnson Matthey Canada (JMC)
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