This year's advent calendar features items relating to the First World War from National Museums Liverpool.
Walter Sickert drew this as a study for the painting Brighton Pierrots, in the Tate collection. It shows the empty deckchairs at the Pierrots show during the war, seats once occupied by the men now fighting in France.
This drawing, which is not currently on display, is from the Walker Art Gallery's collection of works on paper.
Accession number WAG 5429