@ 50yrs old. 50-500 USD
You have a Smith and Wesson model 14 38 special. The 38 refers to the diameter of the barrel. That barrel is 38/100 of an inch in diameter. A 45 automatic has a barrel that is 45/100 of an inch in diameter. A 9mm has a barrel with a 9mm diameter. You can shoot 9mm ammunition from a 38 special. A 22 pistol has a small diameter barrel.
400 or so
Age of smith Wesson serial no 5K4166
100-300 USD
50-600 usd
50-500 usd
ctg = cartridge
Depends on exact model, barrel, and condition. Around $200,
50- 450 usd
100-400 or so
An experienced gunsmith can or you can send it to S&W to have it done.
What are you asking? What are you asking? What are you asking?