Capt. Chas. Askins devoted about a page and a half to the Winchester Model 21 in the July 1930 issue of The American Rifleman. Mostly a regurgitation of the failing company's announcement of the gun, including lies about how light it was!! I searched through the remaining issues of 1930, 1931 and 1932 and didn't find a review of the Model 21. The American Rifleman for 1932 did have reviews of the Browning Superposed which the good Captain really took to in January, the Remington Model 32 in May by F.C. Ness, and Magnum Shotguns discussing the Ithaca Magnum-Ten NID in July again by Capt. Askins. I also checked the index for 1933 and nothing Model 21 was listed.