50- 300 uSD
Smith&Wesson model 14
If you contact Smith & Wesson, they will give you that information.
You can, but, you should not. The frame is not rated for +P
No
Standard Catalog of Smith and Wesson, 3rd, edition
100-375 USD
Stainless Steel Chief's Special
Smith and Wesson Model No. 2
With the serial number that you have supplied,your Smith and Wesson model 37 was made in the year 1981.
50-250 USD
With the serial number that you have supplied,your Smith and Wesson model 10-5 was made in the years 1972-1973.
100-340 or so