First, that is not an antique. Firearms have their own LEGAL definition of antique- Made prior to 1899. Second, the value of ANY firearm is based on exact make, model, and condition. The Iver Johnson firearms, while decent, were not high dollar items when new. The value of your would likely be between $50 and $150, depending heavily on condition.
if double action revolver it was probably made about 1923
value depends on overall condition, however, the rosco has little value...........
I assume your single action is pre-war ? If so, then made about 1907. As to the caliber, check markings on barrel. that should give the caliber.......
Email us a complete description of the S&W, including any patent dates, caliber, number of chambers in the cylinder and type of action (tip up vs swing-out cylinder), and the serial number and I am sure we can help ID it for you. sales@countrygunsmith.net
About 1950. If you provide more information, like model and caliber, we can be a bit more certain in our answers.
1962
on the grip frame.
.40 S&W caliber, semi-auto.The number 4066 stands for caliber (40)40S&W,the third digit(6) stands for nonstandard barrel length,the fourth number(6) stands for stainless steel frame and slide.You may have a single action or double action only third generation S&W semi-auto handgun.
Impossible to answer without a detailed description, type of action, caliber, etc..
Model 581.
There are @16 possibilities for that serial number ranging from the late 1800s to the mid 1960s. Without a detailed descritption of all markings, features and caliber, there is no way to narrow it down further.
Single or double action revolver? Semi-automatic? Caliber? Without these pieces of information, can't help you.