Thats how they made them in the 1920s. From H & D Folsom Arms Co. Catalogue No. 23



The later .410-bore doubles made by Crescent-Davis Arms Co., a subsidiary of Savage Arms Corp., in the 1930s have breeches much heavier and straight without the bell shape flare at the end. Some of those last Crescent .410-bores were made for 3-inch shells.