The current value of a 1950 proof set is $750.
It's not a Proof set, no Proof coins were were struck in 1965-1967. The set is a "Special Mint Set" that has coins with semi-proof like surfaces with less design details. Issue price was $4.00 average retail value is $15.00.
Incomplete question - no country mentioned nor what coins are in the set.
As of 07/2010 a proof set containing copper-nickel clad coins retails for about $13, while a Prestige set with silver coins sells for about $35.
Issue price was $11.00, current value is $8.00
Average current value for an 1981 proof set is about $8.00. The 1982 proof set is the year that is known for the dime to be missing the mintmark.
It's not a Proof set, no Proof coins were were struck in 1965-1967. The set is a "Special Mint Set" that has coins with semi-proof like surfaces with less design details. Issue price was $4.00 average retail value is $15.00.
The 1994-S Clad Proof set (5 coins) with all original packaging has a current retail value of $8.00. Issue price was $12.50.
The set of 1971 Jamaica proof coins can be purchased online for anywhere from $28 to $117. There are seven coins in the set.
1975 Proof sets are valued at $11.00.
Incomplete question - no country mentioned nor what coins are in the set.
You probably have an annual proof set since an uncirculated annual set was not minted that specific year. Nevertheless, a 1950 annual proof set is worth: $650 - $900.
As of 07/2010 a proof set containing copper-nickel clad coins retails for about $13, while a Prestige set with silver coins sells for about $35.
Current retail value is $54.00
Issue price was $11.00, current value is $8.00
All US Proof sets of 1964 and before have silver coins in them, the current value of a 1959 set is $28.00.
About $8.00 is retail list price
Any value would depend on whether they are Mint Uncirculated, Proof, Year Sets, or circulation coins and what condition they might be in.