Erika 40 blue and white 70s typewriter made in Germany

Erika model 40 typewriter. German manufacturing. 1970s (dated stamp present). Plastic dressing in blue and white tones. Dark grey keys. Very nice overall condition. Very rare and very discreet traces of use (discreet stripes of use in places on the plastic cladding, very rare oxidation points in places on certain metal elements. See photos and zoom in). Note that the three keys (9ç), (%ù) and () tend to block after the keystroke and require manual re-up. The tape provided will be changed.