Do you mean KOPECK? In the Russian alphabet the name would be spelled Kопейка.
Before the Soviet Union collapsed a number of countries used the kopeck as their rough equivalent of the cent or penny. Today it's used in Russia and Belarus.
The value of a coin worth 10 kopecks (koiieek) depends on its country of origin and the year it was minted. In general, 10 kopecks is a small denomination and typically has low monetary value, often equivalent to a few cents. However, if the coin is rare or in excellent condition, it might be worth more to collectors. For an accurate valuation, it's best to consult a coin collector or numismatic expert.
That is 'kopeck' in Russian (Cyrillic).
To convert 5 Koiieek to USD, you need the current exchange rate for Koiieek to US dollars. Since Koiieek is not a widely recognized currency, you'll need to check a reliable financial source for the latest rate. Once you have the exchange rate, multiply it by 5 to get the equivalent amount in USD.
I believe your coin is from Bulgaria.
The value of a 1990 20 kopeck coin in America is generally quite low, typically ranging from a few cents to a couple of dollars, depending on its condition and demand among collectors. These coins are not widely circulated or sought after in the U.S., which limits their value. If you're looking for a precise value, it's best to check with a coin dealer or look at recent sales on auction sites for comparable coins.
The value of a 50 kopeck coin in U.S. currency is quite low, as it is a small denomination of the Russian ruble. As of October 2023, 50 kopecks is equivalent to approximately 0.50 to 0.75 U.S. cents, depending on the current exchange rate. However, the exact value may vary based on market conditions and any collectible interest in the coin.
The coin usually has the name of the country or ruler on it.
That depends on which country the coin is from.
The Two Shilling (or Florin) coin is a British coin. British coins do not have the country name on them. The Two Shilling (or Florin) coin was also issued by a large number of British Empire/Commonwealth countries, but will have the country name on them somewhere.
Centenary of what? What country, what coin, what year?
Oostenrijk
France.