I am sending a picture of some advertising labels issued by Leciferrin in Frankfurt, Germany, in 1913 or 1914. Leciferrin was a lecithin-iron preparation made from egg yolk (lecitin željeza priprema od žumanca jajeta). These labels were recently sold on Ebay. They show the Kings of Montenegro, Bulgaria, Greece, Spain, Romania, Prussia, Italy, the Sultan of Turkey, and the Prince-Regent of Bavaria.
