Here are the Tournament Grade from various Winchester paper. From a 1915 Winchester folder --
1915 Tournament Grade.jpg
From the 1916 Winchester catalog --
Tournament Gun 1916 Catalog No. 80, pg 142.jpg
From the 1920 Winchester catalog --
Tournament Grade, 1920 Catalog No. 82, pg 114.jpg
From the 1925 Winchester catalog --
Tournament Grade, 1925 Catalog No. 83, pg 42.jpg
By the next Winchester catalog I have, July 1931, the Tournament Grade had been replaced with the Standard Trap Grade, a gun offered in all three gauges. Also, the Trap Grade (Black Diamond) was replaced with the Special Trap Grade (also shown with the Black Diamond).
Threaded Mode