Yes Iver Johnson did make 410 shot guns, I own 2 break open 410 shot guns both made by Iver Johnson.
The first iver Johnson firearms with this name appeared in 1883.
The Iver Johnson Company
single barrel was probably an Iver Johnson. There were double barrel models made probably by Iver Johnson and possibly Stevens. They were made under contract after WWI for Sharpliegh Hardware in St Louis. This was common practice as Iver Johnson would put your Company name or logo or P/N on anything they made . Iver Johnson originally made bicycles and merged into firearms. Their Champion guns were sold with as many as 20+ different names on them. I have 6 different guns and they all resemble each other very much. Am looking for an extractor for a 12 gague single Champion.
In the case of guns, "antique" has a legal meaning- made before 1899. The value of your Iver Johnson will be based on the exact model and the condition. Although well made, these were not high $$$ guns when new. Value could be anywhere from $50 to $300 (for a perfect new-in-box specimen)
I can say that the Iver johnson target model small frame(,22cal)was made from 1925-1928.The iver johnson target large frame(.22cal)was made from 1921-1941.
The Iver Johnson .22cal supershot automatic model 90 witch you describe was made by Iver Johnson between the years 1932-1941.
They do not make a nine shot pistol made by Iver Johnson. These pistols were available in the 1940s.
Iver Johnson made many different firearms. Serial 24474 is one of them.
The Iver Johnson "Cattleman" series was made by A. Uberti in Italy then imported and sold by Iver Johnson. In good shape, around $350.
Your Iver Johnson Target model 55 was made from 1955-1960.
Yes, and no. The IJ Cattleman Buckhorn was available with a 12 inch barrel and the Cattleman Buntline was 18 inches. However, these guns were made FOR Iver Johnson by Aldo Uberti in Italy.