I have permission to share the following photos of the very first swimming pool in Oberursel, which belonged to the Motor Pool.
1929: pool party or Sommerfest (summer fest)
On 30 March 1945, U.S. troops occupied the town of Oberursel and the Motorenfabrik (Motor Pool). The Motor Pool remained in U.S. American hands until 1956/1957.
The Motor Pool also had its own fire department. The next three photos show a fire drill held in 1969.
Photo source: Geschichtskreis Motorenfabrik Oberursel
For more about the history of the Motor Pool, have a look at the book at 125 years of Motor Pool history , a post I had written about the author Helmut Hujer, and his work.