I am looking for information on a hand painted floor vase signed by the artist F. Lüttgenau.  The vase is very heavy at about 75 pounds and is 44 inches tall.  It is painted with floral, plants and a woman.  There are no markings on the bottom of the vase only a plain bottom.  The only marking is the signature. I am thinking from the 1800’s. Any help is appreciated.