Ithaca Model 37 - 16 Gauge Barrel

Ithaca Model 37 Barrel 16 Gauge. Originally a full barrel opened up to Improved cylinder. Barrel shows some rust toward the end of the bore where the lathe marks are present from removing material to open the choke. Year of Manufacture is 1942 based on the barrel code. Doesn’t fit in my 37. $200 obo.