Skeet Shooting was getting started in the 1920s, but wasn't really formalized and the beginning of big shoots until the 1930s. Which of course was concomitant with The Great Depression.
Winchester introduced their Model 21 Skeet Gun in Tournament, Trap and Custom Built grades in 1932
and added their Model 12 Skeet Gun by the 1934 catalog.
Ithaca Gun Co. began cataloging their NID Skeet Gun with their 1935 catalog.
Savage introduced their Fox Skeeter in their 1931 A.H. Fox catalog,
and in 1932 introduced their Fox Trap Grade which could be had as a trap or a skeet gun. By 1935 Savage added the SP-/SPE-Grade Skeet & Upland Game Gun and the Fox-Sterlingworth Skeet & Upland Game Gun.
Remington Arms Co., Inc. began producing their Model 32 over/under as a Skeet Gun during 1933, first appearing in their 1934 catalog.
They also introduced a skeet Gun in their recently acquired Parker shotgun line. By their 1935 catalog they had added a Skeet Gun version of their Model 31 pump gun and their "Sportsman" autoloader.
Several of our gun companies were advertising guns suitable for the new game of Skeet in the late 1920s, but they don't appear to have been catalog items until the 1930s.
A skeet shooters choices for a 28-gauge Skeet Gun were limited to the Ithaca NID and Parker doubles at the first. Winchester added the 28-gauge to their Model 12 offerings in 1937 and I haven't narrowed down when Iver Johnson added the 28-gauge to their Skeet-er line. Not in the 1934 Stoeger but in the 1939.
From the get go to mid-1931, factory 28-gauge shells here were either 2 1/2 inch with a load of 1 3/4 drams of bulk smokeless powder or 14 grains of dense smokeless powder pushing 5/8 ounce of shot or the 2 7/8 inch shell with the slightly faster 2 drams of bulk smokeless powder or 16 grains of dense smokeless powder pushing 5/8 ounce of shot.
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During 1931, our ammunition manufacturers got around to applying progressive burning smokeless powder to the 28-gauge and the high velocity 3/4 ounce payload Western Super-X 28-gauge shell was introduced.
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That is when Ithaca Gun Co. began to catalog the 28-gauge again --
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