British & Empire Campaign Medals
Stephen Philip Perkins
The Standard Guide To Grading British Coins
Derek Francis Allen
The History and Coinage of the Roman Imperators 49-27 BC
David R. Sear
The World Encyclopedia of Coins & Coin Collecting
James A. Mackay
Manx Museum, Douglas, Isle of Man
Kristen Bornholdt Collins
The Lord Stewartby Collection of Scottish Coins At the Hunterian, University of Glasgow. Part II Robert III-James VI, 1390-1488
William A. MacKay
The Royal Mint Puzzle Book
The Royal Mint
