You specifically have the Iver Johnson TP-25 pistol. These were produced on US-made frames from the Iver Johnson location in Jacksonville, AR with internal parts produced by Erma-Werke in Germany. Your gun was produced in the late 1980's.
A publication entitled Iver-Johnson Arms & Cycle Works Firearms 1871-1993 has a list of most serial #'s with dates of production, published by Gun Show Books Publishing.
The Iver Johnson viking was made between the years 1964-1978.The value of this firearm in the condition in which you describe is 200 dollars.
If it's the Iver Johnson M1 Carbine, they were manufactured from the mid 1960's through the mid 70's. Sorry I can't be more specific.
The company was called Iver Johnson's Arms and Cycle Works from 1891 to 1883. They made top break .32 S&W and .32 Specials from 1892 on. A great source of information on this firearm (and most other Iver Johnson Firearms) is the book by W.E. Goforth titled, "Iver-Johnson Arms & Cycle Works Firearms 1871-1993".
The company was called Iver Johnson's Arms and Cycle Works from 1891 to 1883. They made top break .32 S&W and .32 Specials from 1892 on. A great source of information on this firearm (and most other Iver Johnson firearms) is the book by W.E. Goforth titled, "Iver-Johnson Arms & Cycle Works Firearms 1871-1993".
Sometime in the 1880's.
Hercules was made by Iver Johnson from 1918-1943, Hercules name dropped in late 30's!
Most gun shops. Your Iver J is in caliber 38 S&W, which is NOT .38 Special.
American Bulldog was a name used by at least two different manufacturers. Early guns by H&R date from the early 1900's, but Iver Johnson also marketed a revolver under that name in the 1970's. Johnson and Bye, a predecesor of Iver Johnson, also made an American Bulldog in the late 1800s. These can be identified by an owl's head on the grip.
Iver Johnson no longer offers any service on their M-55's and other selected models. If you need service take it to your trusted gunsmith. Thanks and email if you have any other questions.
If you've ID'd it as an Iver Johnson product, I'd guess it is a Champion model which was made from 1909 to 1956. I think Sears may have dropped the Eastern Arms name sometime earlier than that, probably in the 1930's.