A Model 37 is a "pump", so a double barrel could not be a Model 37
What is the condition of the gun and the barrel length?
look on the Side of the recevier there should be a Serial Number on the older Ithaca Model 37 the serial Number was stamped on the receiver by the magazine tune and Barrel . also if you take the barrel off on the bottom of the barrel you'll find the matching serial Number. then look up WWW.SURPLUSRIFLEFORUM.COM in their search engine type in ITHACA 37 DOM match your shotguns Serial number up with their chart .
On my 1950s vintage Ithaca Model 37 16 gauge it is on the right side of the end of the receiver where the magazine tube and barrel go into the receiver, and also on the barrel adjacent to the number on the receiver. The numbers should be the same on both the barrel and receiver unless the barrel is not the original barrel, at least on mine they are.
easy Look on the barrel it should say if it a Model 37 , or Model 37 Featherweight, but the main Point is it should be on the barrel what Model it is
It your shotgun a Model 37-S or 37-T ?
The Model 37 was mfg in 1969.
The serial number indicates your Model 37 was manufactured in late 1969.
Well, first of all the serial number given is for a model 37 and not the model 51. All model 51s serial number begin with 5100. Since your begins with 37 would you not believe that it is a model 37. Your model 37 was mfg circa 1975.
No such serial number for a Model 37. Call S&W
Your Model 37 was mfg. in 1975.
1946