"Robert Evans. Stempelschneider an der Royal Mint." - https://ikmk.smb.museum/object?id=18232548, 25.08.2018
"Robert Evans is a leading Welsh artist who is also a senior engraver at the Royal Mint. He is famous for his design of the British 2001 Marconi £2 Commemorative Coin." - http://jerseycoins.com/com_2/misc/revans.htm, 25.08.2018
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