S. Nagy Anikó - Babucsné Tóth Orsolya - Szoleczky Emese: Mindenütt hódít. Reklám a nagy háborúban (1914–1918) (Budapest, 2009)

Hungarian India Rubber Factory stopped producing them and manufactured batteries, rubber-coated fabric, watertight tent material and telephone components for the army. In an effort to economise, advertisements and draw-game tables were printed on the back of food coupons used for increasingly small rations. There's nought to eat in restaurants There's nought to buy in at the tobacconist There's nought to drink in the beer-house There's nought to believe in many a dispatch (From the satirical weekly Borsszem Jankó, 27 August 1916) Patriotic traders offered 2% of their daily takings for the support of widows and orphans. The counting slip, the predecessor of machine-printed receipt, was an ideal medium for advertising. The empty rear side was used by the shopkeeper or waiter to add up sums . The front featured an advertisement. During the war they often had photographs from the frontline, taken from the newspapers of the day. Letter seal stamps serving advertisement and propaganda purposes flourished during the Great War. "I have also been summoned to the battlefield by holy patriotic duty. I am leaving to where honour and duty called me. I kindly ask the public and my dear customers to patronise my store and thus help to sustain my family at home. "