Western All Around Tack Set. Included Stable Blanket, Fly Mask and Halter. #3915 was pictured in the 1977-1978 catalogs, and #2360 was shown starting in 1979. The catalog photos show the same photo and description for both sets. There may have been a difference with the color of the canvas blanket, brown or blue for #3915 and red for #2360, but ongoing research for differences. Please contact me if you have photos you can share.
In 1978, Sears advertised the #212 Mahogany Bay Arabian Stallion standalone as #49N2199, or with the Western All Around Tack Set #3915. Tack set included stable blanket, fly mask and halter. The Sears number for this set is #49N2197 and also references a Breyer #21215.