Swiss 20 rappen since 1939 coin value

The image of this coin is simply an example of Switzerland 20 rappen since 1939 type coinage.
Cost approximate and valid for common coin only (without rare varieties).
I do not buy or sell coins - this is just a catalog.

Swiss Confederation (since 1848)

Currency - Franc=100 rappen
Type - circulation coins

Composition - copper-nickel
Diameter - 21.05 mm.
Weight - 4.0 grams
Alignment - Medal

Years of coinage - 1939, 1943, 1945, 1947, 1950, 1951, 1952, 1953, 1954, 1955, 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
Mint mark - B (Bern)

Obverse:
Value within wreath
Legend: 20

Reverse:
Crowned head right
Legend: CONFOEDERATIO HELVETICA / Year

Edge: Plain

Krause catalog number - KM#29a

Coin price in "UNC" - 0.30-0.50 USD