You can purchase, [or borrow from a library], a copy of, " The Bluebook of Gun Values", take the firearm to a gunsmith or gunshow, or goto shotgunworld.com and join the forums for free, [or just browse to see if your question has already taken care of]. There they have a section specifically for identifying older shotguns as well as sections for specific manufacturers.
1930s
Probably $50-$75.
I can say that your shotgun being marked with J Stevens Arms and Tool Co.indicates that it was made from 1886-1916.That marking was only used during these years of production.
Have it examined by a gunsmith.
150-600as new
To determine the age of your Stevens Arms and Tool Company shotgun, you'll need to check the serial number, which can often be found on the receiver or barrel. Stevens produced shotguns from the late 19th century, so the serial number can help you identify the year it was manufactured. Additionally, reference materials like the Blue Book of Gun Values or online databases specific to Stevens firearms can provide further insights into its age based on the model and serial number.
$50 in good condition
Impossible to answer without more information.The manufacture date can be approximated by the company name.J Stevens & Co = 1864-1886J Stevens Arms & Tool Co = 1886-1916J Stevens Arms Co = 1920-late 1940sStevens = 1940s-1990
Your Stevens model 235 was made between the years 1912-1916.This is when the Name Stevens arms and tool Co was changed to Stevens arms Co.The model 235 was made from 1912-1935.So the years listed fit into both the name and manufacturing time frame that your shotgun was produced.I hope that you find this informative.
Depends on model and condition. Anywhere from $75-$250.
Your Stevens model 200 shotgun was produced around circa 1910.
I can say that the marking stevens Arms and Tool company was marked on stevens made firearms from 1886-1915.This time period would include your double barrel shotgun.As to value that would dpend on your shotgun having steel barrel or Damascus twist steel barrel(BLACKPOWDER ONLY).The ovreall condition would also be important.