16 May 1918 A German Army 21cm Morser 16 howitzer and crew near Hollebeke, Belgium. May 1918. Image courtesy Australian War Memorial. Newer >> << Older Leave a Reply Click here to cancel reply. Name * Email * Website Comment Submit Comment Notify me of follow-up comments by email. Notify me of new posts by email. This entry was posted on May 16th, 2018.