The Model 57 is chambered for 41 magnum. The value would depend on the condition, the date of manufacture, barrel length,a nd wether or not it has a box, presentation case, or is just the revolver. Normally you would find one of these in average condition with no box in the $500 to $$650 dollar range.
50-500 usd
50- 575 usd
No such model made by S&W
100-1000 USD depending on specifics
100-300 or so
What model?
Your smith and Wesson model 64-3 was made from 1977-1987.
Without a specific model number and serial number the range is 50-7000 USD
2006
Does not exist.
50-500 usd
1948