Osterholz Class III Supply Point, Ludwigsburg (Source: Thomas Schulz, Germany) Looking across the road (Osterholz Allee) from the Class III Supply Point at another former US Army facility. This smaller site consisted of a large warehouse-type building (seen in photos) and a clearing nearby. Designation and function of the small facility are unknow. (The property has been returned (like most of the Ludwigsburg installations) to the German government and is now used by a German firm. )