References
- Numismatic Circular ( Spink & Sons Ltd, Oct. 1953 et seq.).
- Journal for the Society for Ancient Numismatics, U.S.A. Vol. VIII No. 1–5.
- R. F. Tylecote, A History of Metallurgy (London, The Metals Society, 1976).
- Homer's Odyssey, 9th Book.
- as at 2. above.
- as at 3. above, pp. 43–44.
- Huttenwerke Oberhausen AG, Versuchanstalt, Abt. Metallkunde, 10.3.64.
- G. E Ansell, The Royal Mint, (1871, London, pl. 1.9.
- D. E Allen, Dies in the Public Record Office ( London, 1938).
- Numismatic Chronicle, 1995, pp. 165–200.
- N. J. Mayhew, A New History of the Royal Mint, ed. C. E. Challis ( Cambridge University Press, 1992),
- C. E. Challis, as at 11. above, p. 293.
- Numismatisches Nachrichten Blatt, Cologne, Oct. 1989, pp. 232–241.
- as at 12. above, p. 295.
- Private communication from the Kremnica Mint, Slovakia.
- C. R. Ashbee, The Treatises of Benvenuto Cellini, U.S.A. ( Dover, 1967).
- 'Die Beziehungen zwischen Tirol und Augsburg', private communication from Dr. G. Werner.
- Private communication from the Kremnica Mint, Slovakia.
- John Craig, The Mint (Cambridge University Press, 1953), pp. 158–160 et seq.
- as at 19. above.
- Diary of Samuel Pepys, 19 May 1663. ( This date confirms quotation regardless of publisher.)
- Journal of Wilhelm Schellink, 1663, Bodlean Library Ms. d'Orville 558.
- Journal of Historical Metallurgy Society, no. 1(1977), pp. 25–29.
- D. R. Cooper, The Art and Craft of Coinmaking (London, Spink & Son, Ltd, 1988).
- Matthew Boulton's letter 6 July 1797, Birmingham City Libraries (ref. no. not known, a personal communication from Dr. K. Barraclough).
- Der Königlichen Munz Commission, 30 May 1812, Munich Archives.