The value of an Iver Johnson Magnum 22 caliber revolver would be dependent upon a number of factors. Some of these factors would be the age and condition.
These were made by the Iver Johnson Company from 1910-1935. Your revolver is from around 1930.
What is the manufactures date on an Iver Johnson revolver serial # Q18255
My iver johnson has the serial # on the trigger guard
see text: Iver Johnson Arms and Cycle works 1871 - 1978
32 caliber Safety Automatic revolver (serial number 463344). (McKinley succumbed to these wounds nearly eight days later, at 2:15 am on the 14th of ...
Without knowing the model and caliber, we can't tell. A serial number ALONE does not identify a gun.
About 1915. US Revolver Company was a brand name used by the Iver Johnson Company from 1911 to 1933.
About 1912. Those were made by Iver Johnson for 23 years starting in 1910.
All of them have a sn.
No published production data. They generally date from the 1930-1930s. They were a less expensive line of the Iver Johnson company.