Your radio collection is something to be proud of; very fine sets, the likes of which we will never see again in this age of cheap plastic one-chip gutless wonder throw-away-when-they-break-down portables. I'd hold on to every one of those oldies if I were you.
However, I did a double take when I saw one of your German radios. Was I seeing things, or did the set have an old RCA logo on it (the round one they used from the '50s until the late 1960s)? Hmmm.
I'll have to look at the picture again to be 100-percent certain, but I could have sworn I saw just such a logo on the front panel of an obviously German radio, which looked like a Grundig or something similar--unless Grundig was making radios for RCA (or vice-versa) after the war.