I've never seen those carriage hooks before, they're very interesting; I'll have to check my Progress to see if the screws that hold the hooks on your Filia are still on my machine. It's possible too that the screw has another function and needs to be replaced when the hook is removed. Another reason to check my machine.

I knew you'd like that! I'll take better photos one of these days. And I will have a closer look at my two Progresses, too. I think that apart from the look there are not many similarities with the Filia, which is reduced and simple to the max. I checked some images on the internet, there do not seem to be any holes in that area on a Progress. I don't think that these screws serve any other purpose than holding the hooks. They are very short, and badly painted in orange as they are, they do not fit in the look of the machine at all. The holes where they are screwed in are in flat circles a little bit elevated from the body. The hooks fit onto the bottom part of the carriage release mechanism (big flat lever on the right hand side of the carriage on image 2 / steel part next to the screw above the hook on image 1). With the carriage in a working position, they do not fit. I figured out that they will only be able to do their job when the carriage release lever is activated, and the whole carriage pushed towards the front of the machine, it is held by four screws on the back carriage rail (tube, rather). So they only fit when the machine is put in a non-operational state, which I guess the buyer of the machine would not do. That's why I think this is a pre-sale securing device only used on transport between factory and dealer. So amazing that they have survied on that machine )

Yes, in terms of Olympias, Germany is paradise. At present, besides the Filia, I have a Splendid 33, an SF de Luxe, a salmon SM7, an SM8 with QWERTY keyboard and script typeface (from Smyrna Beach, Florida), two SM2s, one of them battered and broken, an SG3 with Imperial typeface, two 1940s Progresses with different bodies, the older one of them with the embossed line "Importé d'Allemagne" on the paper rest, an SM4 Monica, a well-working SM9 that looks like a mess, crusted with dirt and substantial areas of the paint worn off due to heavy usage. And a Unis tbm deluxe, while I am still waiting to get the Olympia traveller. Finally, I am desperate for a Plana (I had an Optima Plana in the range, but it's sold). Well. Not that many blanks left ...
 

I'll keep my eyes open for a fraktur typewriter. Even here, there do not seem to be many around anymore. There are typesleeves with fraktur letters for the mignon, though. And they're always dead expensive.

As for the Monica, I got it mixed up. It is certainly a SM5, too, it looks very much the same like yours. Beige with a light greenish touch.

Sure. I already thought that might probably not suit your needs. I guess most of the fraktur typewriters from the 1930s do not exist anymore or might even be handled within the field of 3rd Reich devotionalia. Something "normal" people do not get involved in over here. It seems German administration got fully equipped in the mid-1930s but later abandoned fraktur totally for any official writing. Before the thirties there weren't that many around, because broken type on monospace didn't work out well. There's an interesting article on German Wikipedia: https://de.wikipedia.org/wiki/Antiqua-Fraktur-Streit, and I couldn't really find something on the matter in English. I also found that, after WW2, some individuals had custom made fraktur typewriters and that an association of German fraktur afficionados had a contingent of fraktur machines produced for nostalgic reasons. Most of the machines might have been standards, not portables, although I have seen mentions of SG5s. There is a forum on Fraktur type, and they are discussing Schreibmaschinen every now and then. Hope this helps.