This ultra-rare mail envelope from Germany in 1931 is a true gem for any stamp collector. The envelope features a beautiful cover design and has been used, adding to its unique character. The item originates from Berlin, Germany, and belongs to the category of stamps from Germany and its colonies.

It is important to note that this envelope has not been officially graded or certified, but it is a highly sought-after item for collectors. This piece of history is a must-have for any enthusiast of German stamps and is sure to be a valuable addition to any collection.