Set #3905 is pictured in the 1977-1978 catalogs. This set has a browband; whereas, set #2350 only has a crown piece. The catalog photos show the same photo and description for both sets.
In 1977, Sears advertised the #63 Bay Halla with the Forward Seat English Saddle and Tack Set #3905. Sears #49C2094.
In 1978-1979, Sears released the single model (Sears #49N2190/49C2190) and with Forward Seat English Saddle and Tack Set #3905 (Sears #49N2188/49C21075 and Breyer #6805). The tack set pictured for 1979 looks like #3905, even though #2350 is pictured in the Breyer catalogs. Unknown which set was actually included.