Davis Certified Shotgun 410 double barrel

Question
I'm doing research for a friend who inherited a David Certified 410 Double Barrel shotgun.  On the left side above the trigger it says " Davis Certified Shotgun " and below that it says " Crescent-Davis Arms Corporation " .

The only other information printed anywhere on the gun is the serial number which is on the barrel viewed when open " S20156 " .

Barrel is 26" long

Any information you can provide would be greatly appreciated.  Thank you for your expertise.

Joel T Brown

Answer
Joel,

The Crescent Arms Company came to be after 1930 when they purchased the rights to the name which was later aquired by Stevens/Savage. The "Certified" (Savage) in good condition would have an approximate retail value of $250 to $300.

Thanks for the question Joel.
Sid Lark