In #1, the Germans are all pretty common. The 4gr would have the best value, whether unused or used, but it still is not a lot. As a general rule the earlier issues (the groschen issues) have better values than the later issues (the pfennige and mark issues). Any of them have much higher values with postal cancels, but yours look like typical usages.
I haven't looked up the 5gr yet...it is North German Confederation.
As for the Swiss, the 1fr catalogues higher as unused, and the other two are higher as used...isn't that the way it always goes. All three are pretty low value.
There is a paper variety for all three Swiss that would be much higher, but the centers would also be carmine, and I think your centers are rose.
In simplified terms, the two Belgians are the high values of the 1871-1888 issues, both from a face value and a catalogue value point of view. Better than catalogue minimum, but still only a few bucks. I like the centering on the 1f...I don't know if I have any centered that well.
The earlier Leopold I issues from 1866 are where most of the value is found in used Belgium telegraphs. These Leopold II issues are valued nicely in mint.
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