More information is needed. Several countries issued 25¢ coins in 1942. Please look for questions like "What is the value of a 1942 US quarter?", "... Canadian quarter?", etc.
Nickel 3-cent pieces were only struck from 1865 to 1889. If you instead have a silver 3-cent piece with that date, its value would be in the range of $25 to $100 depending on condition.
dimes, 25 cent piece, pennys, 5 cent piece, half dallor, and dallor pieces!
Face value only.
It's still worth 25 cents.
At the most 25 cents
On average, around 25 cents, and maybe a bit more if it's a 1942-S.
It's still worth 25 cents in Canada.
The Silver value is $3.05 as of today 3-22-10
Nickel 3-cent pieces were only struck from 1865 to 1889. If you instead have a silver 3-cent piece with that date, its value would be in the range of $25 to $100 depending on condition.
Unless your coin is of some collector value, which would need to be assessed by a coin dealer, a 1942 canadian coin is actually worth more for its silver content value than the 25 cent face value. Your coin contains 80% silver which, at today's prices, is worth approx $2.90 in silver value. The related link below will calculate the value with current silver prices.
copper
More information is needed. Several countries issued 25¢ coins in 1947. Please look for questions like "What is the value of a 1947 US quarter?", "... Canadian quarter?", etc.
25 cent
£2.50
25 cents
25 cents
One half dollar (50 cent piece) and two quarter dollars (25 cent each piece)