The obvious answer is that it depends on silver bullion value. These sets do not command a price much higher than bullion value, they're kind of a "sleeper" series of collectible coins that, even though currently NOT priced very much above bullion, should increase in collector value over the years. I recommend Coinflation.com as an excellent site to price out individual coins, although the listings are for circulated coins. Prices for the proof-like (the correct term) Canadian sets from 1964 range from $52-$56 from online places, eBay usually has them going for around $45-48.
The retail value for a 1964 proof set is $19.00 Original issue price was $2.10 mintage was 3,950,762
All US Proof sets of 1964 and before have silver coins in them, the current value of a 1959 set is $28.00.
Issue price was $2.10, current value is $30.00.
A complete 5 coin 1964 proof set in original mint packaging has a current value of $30.00. The issue price was $2.10.
Current average retail value is $19.00
All US Proof sets of 1964 and before have silver coins in them, the current value of a 1958 set is $43.00 issue price was $2.10
What is value of proof set of Commonwealth of the Bahams proof set 1974
The value depends on the actual grade of the coin. Most are 25 cents to $1.75. NOTE: All 1964 proof sets contain 90% silver half dollars, quarters and dimes.
The current value of a 1962 US proof set is $29.
The current value of a 1950 proof set is $750.
With all original Mint packaging in good condition, current retail value is $19.00. Issue price was $2.10.
Current average retail value is $28.00. Issue price was $2.10.