You take it to a gunmsith.
50-500 usd
the value of a smith Wesson 8 inch barrel model 27-2
What model?
100-550 USD or so
50-500 usd
1970
100-600 usd
100-5000 or so depending on EXACTLY what you have.
The very first .357 Magnum cartridge was introduced in 1934 by Smith and Wesson.
Yes
100-200 USD
200-300 US dollars.