This Erika 2 was made just before the model 4 hit the scene it seems. Its in decent working shape, and though based off the Corona design, makes its own improvements like a keyboard mounted backspacer key.
If I had to choose between a Corona 3 (with rest key or dual shift) and the Erika, I would choose the Corona 3.
Status: Typewriter Hunter
Professionally printed, coil bound workshop repair manuals.