I wish I had an answer I an looking for the same thing I have one that I am working on right now I came from my grandmothers barn owned by my great grandfather I have got bits and pieces of info they were made in late 1800 and early 1900 built in Boston mass I woluld love to find out more do you have a pic
Model 1901 Iver Johnson, semi-hammerless, automatic ejector single gun.
The name with "Tool Co" at the end was only used from 1887 - 1916.
What information would you want? Crescent made single shotguns from 1893 to 1930. If it has a large side hammer and damascus barrels, it would almost certainly be from before 1915. If it has fluid steel barrels and a center hammer (or is hammerless) then sometime after 1903.
Single barrel, $50-$75. Double, $150-$250.
None published. Try shotgun collectors.
1955 to 1962
If it is a hammerless single shot or double barrel, it was PROBABLY made by Crescent Firearms, 1892-1931.
According to the guide I use, IJ Made a "Special Trap Single Shot Hammer Shotgun" and a "Super Trap Hammerless Double". Both discontinued in 1942.
Theate Freres of Belgium if it is a double with outside hammers. Crescent Fire Arms if it is a hammerless double. Iver Johnson Arms & Cycle if it is a single shot.
about $100
Google.
You can find information for the 16 gauge Worthington Challenger single barrel shotgun at most gun stores and pawn shops. Many of these stores offer free appraisals and have knowledgeable clerks.