1916 WW1 photo postcard of German military First Aid workers

Group photo of a dozen German First Aid soldiers wearing red cross armbands on left arm.

Printed text on back:

Publisher L. Karl Stadelmann, photographer Leonberg in Stuttgart. All Rights Reserved 1916.

Unsent.

There are multiple nicks on photo where white paper comes through. On back some rust spots and staining.

(Red text is an electronic watermark that is not physically part of the photo for sale)