Interesting. In the 1980s I had the same model Ikonta with the exact markings, which I bought in Malaysia.
I no longer own this camera, but I remember that lettering very well.I thought it unusual that it would have been engraved on the finder.
My thoughts are the camera was produced in Germany for the Chinese amateur photo market in Asia. Mine may (or may not) have been sold to its original owner in Malaya or Singapore, but that's where it was when I came across it in a camera shop in, as I recall, Melaka,and bought it.
I used it for several years and it produced very sharp negatives. It had (again going on memory) the Novar 75mm f/4.5 in a Compur-Rapid shutter.
I now have a later model (circa 1950) 520/16 with the same lens in a Synchro-Compur shutter. This one also produces superb negatives.
FYI...