what is the silver content of a 1920 george v half crown?

Answer 1

George V of the United Kingdom 1910-1936 Silver Half Crown Sterling silver (92½% silver) until 1919, then 50% silver

Half-Crown coin of Oliver Cromwell, 1658The half-crown was a denomination of British money worth two shillings and sixpence, being one-eighth of a pound. The half-crown was first issued in 1549, in the reign of Edward VI. No half-crowns were issued in the reign of Mary, but from the reign of Elizabeth half-crowns were issued in every reign except Edward VIII, until the coins were discontinued in 1967. The half-crown was demonetised (ahead of other pre-decimal coins) on 1 January 1970, the year before the United Kingdom adopted decimal currency.

During the English Interregnum of 1649-1660, a republican half-crown was issued, bearing the arms of the Commonwealth of England, despite the name of the coin's monarchist associations. When Oliver Cromwell made himself Lord Protector of England, half-crowns were issued bearing his semi-royal portrait.

Interestingly, the half-crown did not display its value on the reverse until 1893.

The half-crown coin was nicknamed the "half-dollar".

History of the Half-crown by Reign
Henry VIII of England 1526: The first British Half Crown was struck in gold.
Edward VI of England 1551: Issued the first Half Crown in Silver. The coin was dated and showed the King riding a horse.
1554 – Mary of England married Philip II of Spain and the Half Crown was struck but was never issued for circulation. Three specimens exist.
Elizabeth I of England gold Half Crowns were issued again. At the end of the reign silver half crowns were issued.
James I of England gold Half Crowns were issued again. During the reign silver half crowns were issued.
Charles I of England Silver Half Crowns were issued, including those struck as OBSIDINAL money, money of necessity during the Civil War period.
Commonwealth of England Oliver Cromwell silver Half Crowns were issued. During years 1656 and 1658 Milled Half Crowns were issued of Oliver Cromwell
Charles II of England 1663-1685 Silver Half Crowns were issued, and this period saw the end of the hammered issue of half crowns.
James II of England 1685-1688 Silver Half Crown
William & Mary of England 1689-1694 Silver Half Crown
William III of England 1694-1702 Silver Half Crown
Anne of Great Britain 1702-1714 Silver Half Crown
George I of Great Britain 1714-1727 Silver Half Crown
George II of Great Britain 1727-1760 Silver Half Crown
George III of Great Britain 1760-1820 Silver Half Crown
George IV of Great Britain 1820-1830 Silver Half Crown
William IV of the United Kingdom 1830-1837 Silver Half Crown
Victoria of the United Kingdom 1837-1901 Silver Half Crown
Edward VII of the United Kingdom 1902-1910 Silver Half Crown
George V of the United Kingdom 1910-1936 Silver Half Crown Sterling silver (92½% silver) until 1919, then 50% silver
Edward VIII of the United Kingdom 1936 50% Silver Half Crown Not issued for circulation.
George VI of the United Kingdom 1937-1952 50% Silver Half Crowns were issued until 1946 when the metal was changed to cupro-nickel
Elizabeth II of the United Kingdom 1952- The last Half Crown was issued in 1970 at the time of decimalisation

Mintages
Victoria (Jubilee)
1887 1,438,046 1,084 1890 3,228,111
1888 1,428,787 1891 2,284,632
1889 4,811,954 1892 1,710,946
Victoria (Old Head)
1893 1,792,600 1,312 1898 1,870,055
1894 1,524,960 1899 2,865,872
1895 1,772,662 1900 4,479,128
1896 2,148,505 1901 1,516,570
1897 1,678,643
Edward VII
1902 1,316,008 15,123 1907 3,693,930
1903 274,840 1908 1,758,889
1904 709,652 1909 3,051,592
1905 166,008 1910 2,557,685
1906 2,886,206
George V
1911 2,914,573 6,007 1924 5,866,294
1912 4,700,789 1925 1,413,461
1913 4.090.169 1926 4,473,516
1914 18,333,003 1927 6,837,872 15,000
1915 32,433,066 1928 18,762,727
1916 29,530,020 1929 17,632,636
1917 11,172,052 1930 809,051
1918 29,079,592 1931 11,264,468
1919 10,266,737 1932 4,793,643
1920 17,982,077 1933 10,311,494
1921 23,677,889 1934 2,422,399
1922 16,396,724 1935 7,022,216
1923 26,308,526 1936 7,039,423
George VI
1937 9,106,440 26,402 1945 19,849,242
1938 6,426,478 1946 22,724,873
1939 15,478,635 1947 21,911,484
1940 17,948,439 1948 71,164,703
1941 15,773,984 1949 28,272,512
1942 31,220,090 1950 28,335,500
1943 15,462,875 1951 9,003,520
1944 15,255,165 1952 n/m
Elizabeth II
1953 4,333,214 40,000 1961 25,887,897
1954 11,614,953 1962 24,013,312
1955 23,628,726 1963 17,625,200
1956 33,934,909 1964 5,973,600
1957 34,200,563 1965 9,778,440
1958 15,745,668 1966 13,375,200
1959 9,028,844 1967 33,058,400
1960 19,929,191

http://en.wikipedia.org/wiki/British_half_crown_coin

Answer 2

Silver Half Crown