Photograph of a Powder and Cartridge factory. Panellinion Lefkoma Ethnikis Ekatondaetiridos 1821-1921, v. 2. Dritsa, Μ.,Viomichania kai Trapezes stin Ellada tou Mesopolemou, National Bank Cultural Foundation (ΜΙΕΤ), Athens 1990, fig. 10. © National Bank Cultural Foundation, Athens.