Rosenthal 11" Crumpled Paper Bag Vase (Brown)

This is a fabulous Crumpled Brown Paper Bag Vase by Rosenthal.  It is in excellent condiion with no scratches, cracks, nicks, etc.  with the excception of one of the bottom corners that shows a tiny bit of wear (unable to even capture it in a photo well) but, otherwise, it is excellent.  I have researched the paper bag vases by Rosenthal but I have not found much info on ones the size of mine. 

I was not able to capture the Rosenthal inscription on the bottom very well in photos.  I would love to know more about it and what the value is.  I picked this piece up years ago and I just love it!

Good