This is a poster advertising entertainment at Helmia Camp in Egypt, and was amongst a collection of photographs, newspaper clippings, and postcards, all belonging to my great grandfather Alexander Wright. It shows he was a bugler (and could sing!), and places him in Cairo on April 19th, 1915: the date of the entertainment starts on a Monday in April, either the 19th or 29th. The only dates between 1915 and 1917 (when he was back in New Zealand) that this occurs is April 19, 1915. (www.dayoftheweek.org)
Military Monday is an ongoing series at GeneaBloggers.