165
Yes.
50-500 usd
The CTG. Stands for Cartridge.
25-60 or so
@ early 50's. YOu will have to call S&W to narrow it down more.
@ 1973; 50-350 usd
48 yrs; 50-359 USD
You need to provide a detailed description, to include the serial number.
Depending on condition, $125-$200
Call S&W and they will tell you when it left the factory. It could have been made a week to a year before.
Impossible to answer without a detailed description of all features, condition, finish, box, papers, accessories, etc..