Lightweight half-size portable, straight stitch only, Featherweight-class bobbin. Produced from the 1930's into the 1960's. Original colors: Black & Gold, White (aka pale green), Tan, Black Crinkle (aka Godzilla). Black & gold is the most common color, tan is the rarest. Black Crinkle is very rare. Model 222 free-arm is a rare find. Singer produced a special cabinet and folding table for the Featherweight.