Switzerland, 1981 AD., Bern mint, 20 Rappen, KM 29a.

Switzerland, engravers: Karl Schwenzer (obverse) and Karl Friedrich Voigt (reverse), Bern mint, 1944 AD., type of 1938-2013 AD.,
20 Rappen / Centimes / Centesimi (ø 21,1 mm / 4,00 g), copper-nickel, 4,00 g. theor. mint weight, mintage 10.000 (in proof, otherwise 25.045.000), axes medal alignment ↑↑, plain edge,
Obv.: CONFÅ’DERATIO HELVETICA / 1981 , head of Liberty r., crowned by diadem inscribed "LIBERTAS" (freedom), toothed border.
Rev.: 20 , value number within wreath of leaves and flowers, no mint mark below ribbon, toothed border.
KM 29a .

Year / Mint Mark / Mintage
1939 B 8,100,000
1943 B 10,173,000
1944 B 7,139,000
1945 B 1,992,000
1947 B 5,131,000
1950 B 5,970,000
1951 B 3,640,000
1952 B 3,075,000
1953 B 6,958,000
1954 B 1,504,000
1955 B 9,103,000
1956 B 5,111,000
1957 B 2,535,000
1958 B 5,037,000
1959 B 10,136,000
1960 B 15,469,000
1961 B 8,234,000
1962 B 30,145,000
1963 B 9,020,000
1964 B 14,370,000
1965 B 15,005,000
1966 B 10,785,000
1967 B 8,995,000
1968 B 10,540,000
1969 B 39,875,000
1970 45,605,000
1971 25,160,000
1974 30,025,000
1974 2,400 Proof
1975 50,060,000
1975 10,000 Proof
1976 23,150,000
1976 5,130 Proof
1977 14,012,000
1977 7,030 Proof
1978 14,815,000
1978 10,000 Proof
1979 18,378,000
1979 10,000 Proof
1980 24,570,000
1980 10,000 Proof
1981 22,030,000
1981 10,000 Proof
1982 25.045.000
1982 10,000 Proof
1983 10,037,000
1983 11,000 Proof
1984 22,069,000
1984 14,000 Proof
1985 40,039,000
1985 12,000 Proof
1986 B 10,299,000
1986 B 10,000 Proof
1987 B 10,028,000
1987 B 8,800 Proof
1988 B 25,029,000
1988 B 9,000 Proof
1989 B 20,031,000
1989 B 8,800 Proof
1990 B 6,534,000
1990 B 8,900 Proof
1991 B 48,076,000
1991 B 9,900 Proof
1992 B 12,628,000
1992 B 7,450 Proof
1993 B 32,523,000
1993 B 6,200 Proof
1994 B 20,023,000
1994 B 6,100 Proof
1995 B 8,024,000
1995 B 6,100 Proof
1996 B 4,023,000
1996 B 6,100 Proof
1997 B 6,022,000
1997 B 5,500 Proof
1998 B 7,021,000
1998 B 4,800 Proof
1999 B 4,021,000
1999 B 5,000 Proof
2000 B 3,026,000
2000 B 5,500 Proof
2001 B 7,000,000
2001 B 6,000 Proof
2002 B 12,000,000
2002 B 6,000 Proof
2003 B 10,000,000
2003 B 5,500 Proof
2004 B 10,000,000
2004 B 5,000 Proof
2005 B 6,000,000
2005 B 4,500 Proof
2006 B 5,000,000
2006 B 4,000 Proof
2007 B 22,000,000
2007 B 4,000 Proof
2008 B 41,000,000
2008 B 4,000 Proof
2009 B 32,028,000
2009 B Proof
2010 B 18,000,000
2010 B Proof
2011 B 20,000,000
2011 B Proof
2012 B 20,000,000
2012 B Proof
2013 B
2013 B Proof