a couple interesting disks I picked up - information from lexikon der wehrmacht
1) 2nd Kompanie BAU 114 - would be construction battalion - Construction Battalion 114 was deployed on August 26, 1939 in Military District VIII. The battalion was made up of RAD units as an army force. The battalion was initially deployed to the 8th Army in southern Poland. On October 31, 1939, the battalion was moved from Military District XXI to Military District VIII. There the battalion was officially dissolved on January 23, 1940.
2) ersatz-batterie 10
The artillery replacement department 10 was set up on August 26, 1939 in Regensburg, in the military district XIII, as a light artillery replacement department. The department was subordinated to the 193 division. From October 1942 the division became division 173. On October 1, 1942 the division was divided into an artillery replacement division 10 and an artillery training division 10. These two were reunited on April 7, 1943 as light artillery Replacement and Training Department 10. On July 16, 1943, the department in Regensburg was divided again, this time into an artillery replacement department 10 and a reserve artillery department 10.
From that day, the replacement department was subordinate to the division 413. The reserve division remained subordinate to the now reclassified 173rd reserve division. After the installation, the reserve department was moved to the north of Croatia. In February 1944, the reserve department was moved to the Protectorate of Bohemia and Moravia. There she takes part in the restructuring of the Milowitz shadow division. In 1944, the replacement department was renamed Artillery Replacement and Training Department 10, now in Nuremberg, also Wehrkreis XIII. The training department was mobilized in April 1945 with a field post number.