Stevens Arms made the Ranger shotgun for Sears & Roebuck. Production ended about 1930.
Ranger shotguns were made by the Stevens Savage company. These shotguns generally bring a price of $300 to $400 in good shape.
The double barreled red chieftain of course!
Stephens
Utility grade, functional, not much value.
@ 100 USD depending on condition.
Impossible to answer without knowing ALL markings.
Numerous companies at the turn of the century made inexpensive firearms. No way to know if there are no other markings.
Most likely Stevens they did make a model #5100
100-175 dollars is the going rate for a winchester ranger shotgun.Your ranger shotgun was made from 1964-1981 if it was a model 1400 ranger shotgun.
100-10000 USD depending on EXACTLY what you have and its condition.
Stevens made for Sears Roebuck
I too have a Ranger .410 sxs hamerless shotgun. I believe it to be made by Stevens. Possibly a model 311.