German Labels - Help!

Attended an estate auction today with the missus and certainly got caught up in the proceedings. Among other treasures I won a cigar box stuffed full of stamp and a few old Canadian cover. Overall nothing really special, but I did find these German labels in the box and would like anyone's help in understanding them. My German is non existent, so I am at your mercy.

These first four are part of a set. In fact three of them were joined together, and the fourth was obviously part of the strip at one time, but their connection now was so tenuous I figured it was better just to separate them and remove the selvage. They are mint and unhinged.
That hair on the green one is just some dirt on the scanner.



and this little label I suspect is a tag that would have been attached to an East German stamp (it was in an envelope with a bunch of DDR), but I can't find it in the catalogue.



Any thoughts?

I'm not familiar with the background on these, but you can tell a lot just from the text.

The first set appears to be promoting the Weltbunde der Tierfreunde (World Alliance of Animal Lovers). The text at the top is "Der Weltberühmte Kaiser-Adler" (the World Famous Imperial Eagle), and the text at bottom reads "Für Adlerflüge über Berlin" (For eagle flights over Berlin) or "wirbt für Welt-Tierschutz-Gedanken" (promoting welfare awareness worldwide).

The second is commemorating the birthplace of Egon Erwin Kisch, the House at the Two Golden Bears in Prague.

EDIT: And you are correct on its origin.

Thank you PostmasterGS, you were right! Here he is, Herr Kisch was hiding in that envelope of East German stamps.



He would fit into my 'Sign here please' thread of autograph stamps, as well as the smoking on stamps thread.