Stamp Stories from around the world

This block ws issued as a tribute to “10 Jahre Deutsche Nothilfe” (10 years of German emergency aid) on 29. November 1933. It is the most valuable block issue from the German Reich. CV is 6.000 € for a mint (**) copy and no less than 10.000 € for a cancelled copy as this one. But there is one problem. The cancels are not proved by an expert, and unfortunately a lot of fake cancels are known for this issue. I bought this block in a large collection of German blocks. I have not yet decided if I want to keep the block or sell it.