There are no British general circulation decimal coins that could be considered to have any collector value unless they are "Mint Uncirculated", "Proof", or part of a "Mint" or "Proof" coin set.
Which country are you referring to? A UK 1970 proof set (last of the pre-decimal issues) can be bought for around £15-20.
The 5 coin proof set has a value of $6, the 10 coin set has a value of $15 and the 10 coin silver set has a value of $48.
A Mint issued uncirculated coin set has a current value of $8.00.
what is the value of a Jackie Robinson legacy coin set with baseball cqard and gold coin
Value would be between £4- £6 as at October 2010.
Which country and what type of coin set?
The actual value would be based on the worth of each coin in the set.
There was no 1960 British 5 coin set issued.
A Mint issued 1984 Uncirculated coin set has a average value of $5.00. Issue price was $7.00
All years of issue of the British decimal Twopence coins are still potentially in circulation so, unless they are part of a Proof or Uncirculated mint set or are individual Proof or Uncirculated coins and in absolute mint condition, they are worth 2 Pence.
The 10 coin set has a retail value of $30.00-$35.00