I can tell you it was designed by John Browning and is the US longest running production shotgun. They made millions of them.
The original design was sold to Remington and resulted in the model 17. Only produced from 1921 to 1933 in 20 gauge. A real feather weight and I have one.
Remington decided to shut down this model in 1933. Ithica decided to produce it, geared up and then found the patent did not expire until 1937. Hence the model designation and when the first guns were produced.
You can go here http://www.ithacagun.com/pdfs/serialnumbers.pdf
and find the production date by serial number.