This form is very uncommon.
ProvenanceErnst Langlotz (1895-1978), Bonn, Germany; acquired early 1930s-late 1960s
Michael Langlotz, Switzerland, 1978-2013, by descent from the above
Charles Ede Ltd, London, UK; acquired 20th October 2013
Private collection, Schwabisch Hall, Germany; acquired from the above 2015
A note that accompanied Langlotz' collection number V65 stated that the piece was acquired from Giorgio Sangiorgi (1886-1965), therefore one can deduce that the acquisition of the present vase must fall before 1965 also