Most USSR 25 Ruble coins are palladium. Can you give me a year, a design type or describe the coin? Most of them are worth something, but don't give up your day job.
The value of 1970 ruble is 1-4 dollars depending on quality. But still it's cool coin :)
The Russian currency is the Ruble. There are 100 Kopeks in a Ruble. Denominations are - * One Kopek coin * Five Kopek coin * Ten Kopek coin * Fifty Kopek coin * One Ruble coin * Two Ruble coin * Five Ruble coin * Ten Ruble coin * Ten Ruble note * Fifty Ruble note * One Hundred Ruble note * Five Hundred Ruble note * One Thousand Ruble note * Five Thousand Ruble note
The Russian/Soviet Ruble has been in circulation for hundreds of years as a coin and as a banknote, so it would depend on the year as to what is on the coin. On the pre-Soviet era One Ruble coins, the Tsar appears on the obverse, and the Double-Headed Eagle appears on the reverse. On most Soviet era One Ruble coins, the USSR (CCCP) National (coat of) Arms is on the obverse, and other than Vladimir Lenin, various national symbols, heroes and icons would be on the reverse. On the post-Soviet era One Ruble coins, the Double-Headed Eagle appears on the obverse, and the value appears on the reverse.
A USSR (СССР) 1961 One Ruble (РУБЛь) coin, uncirculated and in absolute mint condition could fetch up to $15 USD. If it has been circulated but still in good condition, it might fetch up to $6 USD. A reputable coin dealer will be able to give a more accurate valuation.
The lettering on the coin is almost certainly in the Cyrillic alphabet used in Russia and some other Slavic countries. "ру́бль" means "ruble" which is Russia's main unit of currency so your coin is most likely from that country. The ruble trades at roughly 30 to the US dollar so a 1 ruble coin would be worth around 3 cents.
"CCCP" are the Russian initials for "USSR", and that ex-country used rubles, not dollars. A 1991 1-ruble note was the lowest-value bill at that time and is generally only worth face value, about 20 cents then.
There were no 1926 USSR 15 Kopek coins minted.
The Kopek. There are 100 Kopeks in a Ruble.
Kopeck (Kopeicka)
Russia does not use cents or dollars, it uses rubles and kopecks. It's more likely that your coins are in rubles because the kopeck is 1/100 of a ruble and has very little value so low-denomination coins are not often used. In any case it's not likely that your coin is worth a huge amount because as of early 2011 the ruble is trading at roughly 3¢ US. If you need a specific please check your coin again for its denomination and post a new question (don't add to this one). The denomination will be in the Cyrillic alphabet: рубль = ruble копе́йк = kopeck
Russia does not use cents or dollars, it uses rubles and kopecks. It's more likely that your coins are in rubles because the kopeck is 1/100 of a ruble and has very little value so low-denomination coins are not often used. In any case it's not likely that your coin is worth a huge amount because as of early 2011 the ruble is trading at roughly 3¢ US. If you need a specific please check your coin again for its denomination and post a new question (don't add to this one). The denomination will be in the Cyrillic alphabet: рубль = ruble копе́йк = kopeck
Russia does not use cents or dollars, it uses rubles and kopecks. It's more likely that your coins are in rubles because the kopeck is 1/100 of a ruble and has very little value so low-denomination coins are not often used. In any case it's not likely that your coin is worth a huge amount because as of early 2011 the ruble is trading at roughly 3¢ US. If you need a specific please check your coin again for its denomination and post a new question (don't add to this one). The denomination will be in the Cyrillic alphabet: рубль = ruble копе́йк = kopeck