Albrecht Klaube's "Gotha" glider of 1921

[Retrofit]

On the same auction website than the "twin fuselage transport project" by Christmas, subject to another recent topic, is presented the blueprint of a unknown single seat tailless glider.

http://www.liveauctioneers.com/item/1557651

Some comments are in German language i.e. "Transport Radgestell".
The detail of the "blueprints & drawing lot" content seems to indicate that it is the "Gotha 1921 Halbrecht Klaube". But impossible to find more information on this designer, glider or project (nothing in the Rhön competition lists; the two "Gothaer Gleit und Segelflug"' gliders, one monoplane, one biplane, engaged in 1921, were both tailled.) Perhaps the rubber stamp below the side view can be a clue.
Thanks in advance for any help.

 

[Michel Van]

this could be "Gothar Waggonfabrik" a defunct Aircraft manufactor
in East german town with same name
they build Bomber during WW1 after that war
under the Treaty of Versailles they only build glider until Nazi came to power

 

[richard]

I think we should read " Albrecht Klaube ;made in Gotha town in 1921."

But I don't found anything about Herr Klaube ...

 

[Jemiba]

The planform and the fins remind me on the Espenlaub E-2.
Maybe a more advanced version ?
(photo from Rudolf Storck "Flying Wings")