Iver Johnson Arms and Cycle Works made a champion model shotgun.
Lack of demand
Iver Johnson
== ==
Sometime in the 1880's.
50-100 USD
Ivory johnson 16 guage chamion shot gun
$50-$125
My best guess is $350
Probably isn't one if it was manufactured before 1969. I think the Champion was still manufactured into the 1970s. If so, the last ones were required to have a serial number clearly marked on the receiver.
No more than 100 USD, if that.
A 16 gauge Iver Johnson Champion is worth fifty dollars--sixty if you throw in a box of shells worth ten dollars.