After introduction of the Smith Double Barrel Trap gun in 1920, the 'Trap Package' included a beavertail Schnabel forend with the reinforced barrel lug, Automatic Ejectors, Hunter One-Trigger, standard recoil pad, and two ivory sights.
Images of the Smith BTFEs here http://www.picturetrail.com/sfx/album/view/15656750

And the Smith "Steamline" Skeet BTFE, introduced in 1929, here http://www.picturetrail.com/sfx/album/view/18779715