BMW E21 Side Vent Window Assembly (includes glass, chrome, rubber, and opening mechanism). Green tinted window shown in picture. Fits the following models (with build dates before 03/1981):
E21 320i Sedan, U.S.
E21 316 Sedan, Euro
E21 318 Sedan, Euro
E21 318i Sedan, Euro
E21 320 Sedan, Euro
E21 320i Sedan, Euro
E21 323i Sedan, Euro