Pridmore, Fred, The Coins of the British Commonwealth of Nations to the end of the reign of George VI, 1952; Part IV India, Volume 2: Uniform Coin, London, UK, 1980. Spink & Son, Ltd., 241 pages, photos of most types, hardcover with dust jacket, detailed numismatic history and catalog of the later series. Far more informative than Krause and a popular and difficult to find edition in the market.
