In Žižkova Street at the Kouřim suburb of Kolín (No. 159/III) František Krátký built a Photo Chemo Graphical Works, where he advertised the manufacture of relief printing blocks “on zinc and copper” also for three-color printing, making of stereo photographs and viewers, sale of own pictures from home and abroad, and a “studio for portrait photography and oil painting”. At that time, Krátký was the most important publisher of stereo postcards.