The Groma Gromina is a recent acquisition (thanks again, German ebay), the Groma Kolibri is a family heirloom from the typewriter collector's wife (I always wanted to use the word 'heirloom' in one of my posts). The abc look familiar? Yes! The Brosette is in need of more attention, whereas the Calanda S is spoiled and prominently put on display in my house.
You will find some more information by clicking on the pictures, or on typewriters.ch.