“Against Winter, Against Disease: Teplo Fornax, the Only Heater Working Without Coal, Gas and Electricity. 1 Hr. of Comfortable Heat for about 13 Halers. In Store in Pharmacies and Drugstores. Advertisement for the Teplo-Fornax Heater, Mír: křesťanský kalendář pro československý lid 1949 [Peace: Christian Calendar for the Czechoslovak People 1949].