As far as I know, they don't make new ones, only 1911 45acp's and M1's, etc.
age Iver Johnson shotgun serial # 33743
Iver Johnson
$25-50.00
Iver Johnson did not have a 410 gauge or bore in 1907. The 410 came along about 1920.
50-100 USD
$50-$125
Ivory johnson 16 guage chamion shot gun
My best guess is $350
About $600-700 in very good condition.
The Iver Johnson Hercules grade hammerless shotgun in 410 gauge was made from 1924-1935 by Iver Johnson.With the serial number that you possess I would assume that it was made early on during production.
No more than 100 USD, if that.
I know where there is one. It is in NICE condition. Where are you located?