Années de fabrication, type:
poids brut en grammes X titre = poids net en grammes = poids net en troy onces
xxxx - xxxx 1/20 oz.: 1,5552 gr x 0,9990 = 1,5552 gr = 0,0500 oz
xxxx - xxxx 1/10 oz.: 3,1104 gr x 0,9990 = 3,1104 gr = 0,1000 oz
xxxx - xxxx 1/4 oz.: 7,7759 gr x 0,9990 = 7,7759 gr = 0,2500 oz
xxxx - xxxx 1/2 oz.: 15,5518 gr x 0,9990 = 15,5518 gr = 0,5000 oz
xxxx - xxxx 1 oz.: 31,1035 gr x 0,9990 = 31,1035 gr = 1,0000 oz
xxxx - xxxx 5 oz.: 155,5175 gr x 0,9990 = 155,5175 gr = 5,0000 oz
xxxx - xxxx Set de 1,1/2,1/4,1/10 oz.: 57,5415 gr x 0,9990 = 57,5415 gr = 1,8500 oz
xxxx - xxxx Set de 1,1/2,1/4,1/10,1/20 oz.: 59,1558 gr x 0,9990 = 59,0967 gr = 1,9000 oz
Afrique du Sud - RSA
1965 - 1987 1 Rand: 15,0000 gr x 0,8000 = 12,0000 gr =0,3858 oz
Allemagne - Germany
1951 -1974 5 Marks: 11,2000 gr x 0,6250 = 7,0000 gr = 0,2251 oz
Autriche - Austria
1960 - 1968 5 Schilling: 5,2000 gr x 0,6400 = 3,3280 gr = 0,1070 oz
1957 - 1973 10 Schilling: 7,5000 gr x 0,6400 = 4,8000 gr = 0,1543 oz
Belgique - Belgium
1949 - 1955 20 Francs - Mercure: 8,0000 gr x 0,8350 = 6,6800 gr = 0,2148 oz
1948 - 1954 50 Francs - Mercure: 12,5000 gr x 0,8350 = 10,4375 gr = 0,3356 oz
1948 - 1954 100 Francs - 4 rois: 18,0000 gr x 0,8350 = 15,0300 gr = 0,4832 oz
1976 - 1976 250 Francs - Baudouin: 25,0000 gr x 0,8350 = 20,8750 gr =0,6711 oz
Canada
1920 - 1966 10 Cents - Dime: 2,3328 gr x 0,8000 = 1,8662 gr = 0,0600 oz
1920 - 1966 25 Cents - Quarter: 5,8219 gr x 0,8000 = 4,6575 gr = 0,1497 oz
1920 - 1966 50 Cents - Half:11,6638 gr x 0,8000 = 9,3310 gr = 0,3000 oz
1936 - 1953 1 Dollar: 23,3276 gr x 0,8000 = 18,6621 gr = 0,6000 oz
19xx - 20xx 10 Dollars Erable/Maple: 31,1035 gr x 0,9990 = 31,1035 gr = 1,0000 oz
Espagne - Spain
1966 - 1966 100 Pesetas: 19,0000 gr x 0,8000 = 15,2000 gr = 0,4887 oz
Etats-Unis - U.S.A.
1916 - 1945 Dime - Mercury: 2,5000 gr x 0,9000 = 2,2500 gr = 0,0723 oz
1946 - 1964 Dime - Roosevelt: 2,5000 gr x 0,9000 = 2,2500 gr = 0,0723 oz
1916 - 1930 Quarter - Standing Liberty: 6,2500 gr x 0,9000 = 5,6250 gr = 0,1808 oz
1932 - 1964 Quarter - Washington: 6,2500 gr x 0,9000 = 5,6250 gr = 0,1808 oz
1916 - 1947 Half - Walking Liberty: 12,5000 x 0,9000 = 11,2500 gr = 0,3617 oz
1948 - 1963 Half - Franklin: 12,5000 gr x 0,9000 = 11,2500 gr = 0,3617 oz
1964 - 1964 Half - Kennedy: 12,5000 gr x 0,9000 = 11,2500 gr = 0,3617 oz
1965 - 1970 Half - Kennedy: 12,5000 gr x 0,4000 = 5,0000 gr = 0,1608 oz
1921 - 1935 1 Dollar - Peace: 26,7300 gr x 0,9000 = 24,0570 gr = 0,7734 oz
1986 - 20xx 1$ American silver eagle: 31,1035 gr x 0,9990 = 31,1035 gr = 1,0000 oz
France
1897 - 1920 1/2 Franc - semeuse: 2,5000 gr x 0,8350 = 2,0875 gr = 0,0671 oz
1898 - 1920 1 Franc - semeuse: 5,0000 gr x 0,8350 = 4,1750 gr = 0,1342 oz
1898 - 1920 2 Francs - semeuse: 10,0000 gr x 0,8350 = 8,3500 gr = 0,2685 oz
1960 - 1969 5 Francs - semeuse: 12,0000 gr x 0,8350 = 10,0200 gr = 0,3222 oz
1929 - 1939 10 Francs - Marianne: 10,0000 gr x 0,6800 = 6,8000 gr = 0,2186 oz
1965 - 1973 10 Francs - Hercule: 25,0000 gr x 0,9000 = 22,5000 gr = 0,7234 oz
1929 - 1939 20 Francs - Marianne: 20,0000 gr x 0,6800 = 13,6000 gr = 0,4372 oz
1974 - 1980 50 Francs - Hercule: 30,0000 gr x 0,9000 = 27,0000gr = 0,8681 oz
Grande Bretagne - Great Britain
1821 - 1919 6 Pence: 2,8276 gr x 0,9250 = 2,6155 gr = 0,0841 oz
1920 - 1946 6 Pence: 2,8276 gr x 0,5000 = 1,4138 gr = 0,0455 oz
1821 - 1919 1 Schilling: 5,6552 gr x 0,9250 = 5,2311 gr = 0,1682 oz
1920 - 1946 1 Schilling: 5,6552 gr x 0,5000 = 2,8276 gr = 0,0909 oz
1851 - 1919 1/2 Crown: 11,3104 gr x 0,9250 = 10,4621 gr = 0,3364 oz
1920 - 1946 1/2 Crown: 11,3104 gr x 0,5000 = 5,6552 gr = 0,1818 oz
1818 - 1902 1 Crown: 28,2759 gr x 0,9250 = 26,1552 gr = 0,8409 oz
1927 - 1936 1 Crown: 28,2759 gr x 0,5000 = 14,1380 gr = 0,4545 oz
Mexique - Mexico
1982 - 20xx Libertad: 31,1035 gr x 0,9990 = 31,1035 gr = 1,0000 oz
Pays-Bas - Netherland
1954 - 1967 1 Guilden: 6,5000 gr x 0,7200 = 4,6800 gr = 0,1505 oz
1959 - 1966 2 1/2 Guilden: 15,0000 gr x 0,7200 = 10,8000 gr = 0,3472 oz
Suisse - Switzerland
1875 - 1967 1/2 Franc: 2,5000 gr x 0,8350 = 2,0875 gr = 0,0671 oz
1875 - 1967 1 Franc: 5,0000 gr x 0,8350 = 4,1750 gr = 0,1342 oz
1874 - 1967 2 Francs: 10,0000 gr x 0,8350 = 8,3500 gr = 0,2685 oz
1931 - 1967 et 1969 5 Francs: 15,0000 gr x 0,8350 = 12,525 gr = 0,40275 oz
Le poids et titres sont extraits du "Standard catalog of world coins". L'état (usure) et la rareté des pièces doit aussi être pris en compte.