This is during the Battle of Passchendaele. The war diary report the unit being in the front line trenches at'Square Farm', a building at times served as various unit's headquarters (photograph on the listing is from the 42nd Division official history). Knight on CWGC, he has no known grave and is commemorated on the Menin Gate.
The item "Original WW1 British War Medal, Royal Irish Regt, Killed in Action Passchendaele" is in sale since Thursday, December 2, 2021. This item is in the category "Collectables\Militaria\World War I (1914-1918)\Medals/ Ribbons". The seller is "hornbeammilitaria" and is located in Bromsgrove. This item can be shipped worldwide.