V.&E. Friedland Seville Model 301
The Friedland Seville is a minimally designed later mid-century compact door chime.
The chime was described in the 1977 Friedland catalog:
301 Seville Bright orange disc ‘floats’ on a matt black plaque giving the chime a crisp bold look. Has built in resonating chambers. Two-note signal for operation from one push ony. Four 1 1/2 volt ‘Baby’ batteries can be fitted inside the chime.