The coat-of-arms during the period of the Third Reich excluded the Esterhazy arms but, I think, did not Franziska Schmidt name her daughter born during the 1950s Esterhazy Schmidt? I think that lady use the Esterhazy heraldic griffin on her stationery as some kind of heraldic device, if not added to her coat-of-arms. You mention the book General von Altenstadt published during the war, "Unser Weg zur Meer". This is translated "Our Way to the Sea". He taught for decades after the war at the Montauk Military Academy as well as worked with Hitler's nephew, Pat Stuart-Houston, developing the Vril technology as Delta Force for the U.S. military.