Can't be answered without a DETAILED description of ALL markings, barrel length, finish, grips, sights, box, accessories, papers, condition.
1995
No serial number provided. Serial # 426742
1979
Check the butt.
1980
1974
1947
email the serial# to smith & Wesson and they will respond with the date
You will have to provide the serial number and a detailed description of the weapon.
what is my 32 revolver woth
With the brief description that you have supplied,I would say that you have a SMith and Wesson model of 1905 4th change revolver.
No such serial number in Smith and Wesson data.