Interesting old threadhttp://www.doublegunshop.com/forums/ubbthreads.php?ubb=showflat&Number=204629&page=1
The L.C. Smith Double Barrel Trap gun was introduced in 1920, with the 'Trap Package' including the (Wadsworth) flat beavertail forend (Schnabel forend available in 1922) with the reinforced barrel lug, Automatic Ejectors, Hunter One-Trigger, standard recoil pad, and two ivory sights.
Extra length, extra wide, straight side BTFE with Ebony tip insert were later available
The c. 1921 H.&D. Folsom catalog No. 18 lists the Baker Expert Grade with a “new style” forend which may be the first (very) slim BTFE.
The Ithaca NID Skeet Special was advertised in the July 1926 National Sportsman
, only 2 months after the game was named!
Ithaca first offered a BTFE in ?????.
Hunter Arms first offered the Streamline (Skeet Style) BTFE with introduction of the L.C. Smith Skeet Special in 1929.
A long Streamline BTFE was available later
A.H. Fox did not catalog a BTFE until 1931.
The problem with later adding BTFE wood is that the extra weight frequently causes the forend lug to separate from the barrels. Factory added BTFEs should also have received a reinforcing wedge