There were no 1926 USSR 15 Kopek coins minted.
A USSR (СССР) 1933 1 Kopek (КОПЕЕК) coin, was made from an aluminum and bronze alloy.
A USSR (СССР) 1977 15 Kopek (КОПЕЕК) coin, uncirculated and in absolute mint condition could fetch up to $0.75 USD. If it has been circulated but still in good condition, it might fetch up to $0.40 USD. A reputable coin dealer will be able to give a more accurate valuation.
A USSR (СССР) 1938 3 Kopek (КОПЕЕК) coin, uncirculated and in absolute mint condition could fetch up to $4 USD. If it has been circulated but still in good condition, it might fetch up to $2 USD. A reputable coin dealer will be able to give a more accurate valuation.
A USSR (СССР) 1986 2 Kopek (КОПЕЕК) coin, uncirculated and in absolute mint condition could fetch up to $0.50 USD. If it has been circulated but still in good condition, it might fetch up to $0.25 USD. A reputable coin dealer will be able to give a more accurate valuation.
A USSR (СССР) 1978 1 Kopek (КОПЕЕК) coin, uncirculated and in absolute mint condition could fetch up to $1 USD. If it has been circulated but still in good condition, it might fetch up to $0.50 USD. A reputable coin dealer will be able to give a more accurate valuation.
A USSR (СССР) 1961 1 Kopek (КОПЕЕК) coin, uncirculated and in absolute mint condition could fetch up to $1 USD. If it has been circulated but still in good condition, it might fetch up to $0.25 USD. A reputable coin dealer will be able to give a more accurate valuation.
CCCP is USSR written in the Cyrillic alphabet. The coin is a 15 Kopek. Копек in Cyrillic. I do not think there is any value to them. I was given a handful by a Russian friend and was told, "No country, no value".
A USSR (СССР) 1972 1 Kopek (КОПЕЕК) coin, uncirculated and in absolute mint condition could fetch up to $0.50 USD. If it has been circulated but still in good condition, it might fetch up to $0.25 USD. A reputable coin dealer will be able to give a more accurate valuation.
bitween 10-500 $ deepence on condition
A USSR (СССР) 1962 20 Kopek (КОПЕЕК) coin, uncirculated and in absolute mint condition could fetch up to $1.50 USD. If it has been circulated but still in good condition, it might fetch up to $0.75 USD. A reputable coin dealer will be able to give a more accurate valuation.
A USSR (СССР) 1924 silver 50 Kopek (КОПЕЕК) coin, uncirculated and in absolute mint condition could fetch up to $50 USD. If it has been circulated but still in good condition, it might fetch up to $20 USD. A USSR (СССР) 1924 silver 50 Kopek (КОПЕЕК) coin (Proof), uncirculated and in absolute mint condition could fetch up to $600 USD. A reputable coin dealer will be able to give a more accurate valuation.