oa Nineteenth Century Platinum Coins

References

1. Donald McDonald, Leslie B. Hunt, A History of Platinum and its Allied Metals”, Johnson Matthey, London, 1982 [Google Scholar]
2. L. B. Hunt, The First Real Melting of Platinum”, Platinum Metals Rev., 1965, 26, (2), 79–86 [Google Scholar]
3. Karl Löhberg, Franz Karls Achard’s Beitrag zur Legierungskunde aus dem Jahre 1788”, Zeits. Förderer d. Bergbaus u.d. Hüttenwesens an der Techn. Universitdt Berlin e.V., 1965, 15, 1–2 [Google Scholar]
4. M. Hansen, Constitution of Binary Alloys”, McGraw-Hill, New York, Toronto, London, 1958, p. 174–175 [Google Scholar]
5. H. Quiring, Die Metallischen Rohstoffe”, 16 Band, Platin-Metalle, Stuttgart, 1962, p.39 and 61 [Google Scholar]
6. D. McDonald, L. B. Hunt, 159–160
7. H. M. Severin, Gold and Platinum Coinage of Imperial Russia from 1701 to 1911”, Crown and Taler Publ. Co., New York, 1958, p. 52–54, distributed by the Numismatic Review [Google Scholar]
8. E.-L. Hofmann, Geschichte der Berg- und Hüttenwerke zu Bieber, Natur und Museum, 1969, 99, 317–328. [The minister’s grandfather, Johann Heinrich Cancrinus was made director (“Bergmeister”) of the silver mines near Bieber in the Northern Spessart Mountains, at that time under the jurisdiction of the Counts of Hanau in the province of Hessia. He died in 1768. His two sons, Franz Ludwig and Johann Philipp followed in their father’s footsteps. Franz Ludwig became supervisor of all the mines in the county, while Johann Philipp succeeded his father as head of the Bieber mines. After serious disagreements with his employer, Franz Ludwig left the services of the Count of Hessia and went to Russia, where he was put in charge of the salt works of Staraja Russa. Later he rose to high ranks as Counsellor to the Imperial Court. He died at St. Petersburg in 1816. His son Georg too became a Russian civil servant and was subsequently promoted to Minister of Finance.] [Google Scholar]
9. D. McDonald, L. B. Hunt, 237–239
10. R. Kieffer, Metallkeramisch hergestellte Kontaktwerkstoffe”, Z. tech. Phys., 1940, 21, 35–40 [Google Scholar]
11. Xaver Frey, C. Blaser, Münzbuch oder Abbildung der kursirenden Geldsorten”, Bern, 1856, p. 225–226 [Google Scholar]
12. D. McDonald, L. B. Hunt, 241–247
13. D. McDonald, One Hundred and Fifty Years”, Platinum Metals Rev., 1965, 11, (1), 18–29 [Google Scholar]
14. C. Hintze, Handbuch der Mineralogie”, 1. Band, 1. Abt., Leipzig, 1904, p. 147–148 [Google Scholar]