I believe it's made from billon, which is an alloy with silver content of less than 50%. I wouldn't classify billon as silver (someone else might).
Silver
The full inscription is Confoederatio Helvetica, which is Latin for "Confederation of Switzerland". A 1993 date means the coin is made of copper-nickel, not silver, so if it's been in circulation it's not worth anything extra. As of mid-2012 it would be worth about US$2 in exchange.
You are asking about a 10 Rappen coin from Switzerland (KM#27). The coin is made of Copper-Nickel, is about the same size as a US nickel, and has a plain edge. The front has a bust of Helvetia, the symbol of Switzerland, facing right, with the words "CONFOEDERATIO HELVETICA" (Latin for the "Swiss Confederation") around it and the date below. The back has a large "10" within a wreath. The coin was retired from legal tender status as of January 1, 2004, and removed from circulation. 3,000,000 were produced in 1884. According to the Standard Catalog of World Coins, an example is worth US$1.00 in Fine condition, US$3.50 in Very Fine condition, US$9.00 in Extremely Fine condition, US$35.00 in Uncirculated condition, and US$75.00 in Brilliant Uncirculated condition.
This is a Swiss coin. Switzerland's official latin name "Confoederatio Helvetica" goes back to a Celtic tribe called the Helvetians. CONFOEDERATIO HELVETICA -SWITZERLAND 10 RAPPEN 1939 - catalog value is about $11 USD.
A 1912 is worth lots more than a 1935 : until 1928 they weighed 25 grams, then they were made smaller - 15 grams. Both are 0.835 purity (83.5% silver) - so the old ones contain 0.7234 troy ounces of silver; newer ones, only 0.4027 oz silver. To find out how much 1 ounce of silver is worth right now,
Without knowing its date, it's not possible to provide a specific value.This much can be said: The coin is from Switzerland; "Confoederatio Helvetica" is Latin "Swiss Confederation". That means if the coin's date is1968 or later it's made of copper-nickel and in average condition has no collector's value. However, at current (2013) exchange rates its exchange value is just under US$5.
You are asking about a 20 Rappen coin from Switzerland (KM#29a). The coin weighs 4.200 grams, measures 21 mm in diameter, and is made of Copper-Nickel. The obverse (front) bears an image of a bust of Helvetia (the personification of Switzerland, much like "Uncle Sam" is the personification of the United States) facing right, with the words Confoederatio Helvetica (Latin for the "Swiss Confederation") above and "1962" below. The reverse (Back) has a large "5" within a wreath. 30,145,000 such coins were produced in 1962. According to the Standard Catalog of World Coins, an example is worth US$0.50 in Extremely Fine condition, US$3.00 in Uncirculated condition, and US$8.00 in Brilliant Uncirculated condition.
It just means it's from Switzerland. Switzerland has four national languages, so to avoid having to pick favorites the country's official name is given in a separate dialect based on Latin. The Latin name translates to Helvetia in English, so the coin in that dialect says "Helvetian Confederation".
This coin, a 1922B 5 Franc coin (KM#37) from Switzerland, is valued at about US$40.00 in Fine condition, US$60.00 in Very Fine condition, US$100.00 in Extremely Fine condition, US$225.00 in Uncirculated condition and US$500.00 in Brilliant Uncirculated condition (according to the Standard Catalog of World Coins). Note that, since the coin is still legal tender, its face value (as of June 17, 2009) is about US$4.61. The coin, of which 2,400,000 were produced in 1922, is made of 90% silver, weighs 25.0 grams (for an Actual Silver Weight of 0.7234 troy ounces - worth about $10.24 as of June 17, 2009), and has a portrait of legendary Swiss hero William Tell (he of shooting-an-arrow-into-an-apple-on-his-son's-head fame) on the front. Note that there is a rare variant of this coin with a dot between "Confoederatio" and "Helvetica" which is valued (according to the Standard Catalog of World Coins) at US$1,500.00 in Extremely Fine condition, US$2,250.00 in Uncirculated condition and US$3,000.00 in Brilliant Uncirculated condition.
You are asking about a 10 Rappen coin from Switzerland (KM#27). The coin weighs 3.000 grams, measures 19.1 mm in diameter, and is made of Copper-Nickel. The obverse (front) bears an image of a bust of Helvetia (the personification of Switzerland, much like "Uncle Sam" is the personification of the United States) facing right, with the words Confoederatio Helvetica (Latin for the "Swiss Confederation") above and "1949" below. The reverse (Back) has a large "10" within a wreath. 2,269,000 such coins were produced in 1949. According to the Standard Catalog of World Coins, an example is worth US$0.50 in Very Fine condition, US$1.00 in Extremely Fine condition, US$30.00 in Uncirculated condition, and US$50.00 in Brilliant Uncirculated condition.
It depends on the denomination and condition. Switzerland produced 5 rappen, 10, rappen, 20 rappen, 1/2 franc, 1 franc, 2 franc and 5 franc coins in 1965. ------------------This coin is in good condition and it is the 20. ------------------ You are asking about the 20 Rappen coin (KM#29) from Switzerland. The coin weighs 4 grams, measures 21mm in diameter, and is made of nickel. The front bears an image of Helvetia, the personification of Switzerland (like John Bull in the UK, Marianne in France, or Uncle Sam in the US) wearing a crown, with the words "CONFŒDERATIO HELVETICA" (Latin for the "Swiss Confederation") above and the date blow. The back has the number "20" within a heavy wreath. 15,005,000 such coins were produced in 1965. From a foreign exchange standpoint, the coin would be worth about 20 US cents; however, it was retired from legal tender status as of January 1, 2004, and removed from circulation. Numismatically, according to the Standard Catalog of World Coins, an example is worth US$0.50 in Exteremely Fine condition, US$2.00 in Uncirculated condition, and US$6.00 in Brilliant Uncirculated condition.
The currency in Switzerland is the Swiss Frank, made up of 100 Rappen.