https://tuckdbpostcards.org/items/139596/pictures/335660
Image of back of card has very clear GPO date stamp for 23/08/1917 compared to current recorded first use of 22/12/1917.
https://tuckdbpostcards.org/items/139596/pictures/335660
Image of back of card has very clear GPO date stamp for 23/08/1917 compared to current recorded first use of 22/12/1917.