On line auctions, gun shops, gun shows, pawn shops.
== ==
Iver Johnson Arms and Cycle Works made a champion model shotgun.
Lack of demand
Iver Johnson
Sometime in the 1880's.
Numrich (Gun Parts Copr.) has some Iver Johnson parts.
Start with Gun Parts Corp and then start looking hard. Old gun parts are getting hard to find.
50-100 USD
Iver Johnson Champion$200.
$50-$125
Ivory johnson 16 guage chamion shot gun
My best guess is $350