In the spring of 2016, the Institute of Archaeology of the Jagiellonian University in Kraków was contacted by an anonymous finder, who offered to donate to the Institute’s collection an artefact accidentally discovered near Koźmice Wielkie. The artefact turned out to be a fitting of a drinking horn, made from copper alloy, crowned with a stylised bull’s head. It expands the collection of drinking horn fittings of group E according to the classification by J. Andrzejowski, represented by only seven other pieces from the entire territory of Poland. According to Andrzejowski they were manufactured mainly in the Danish Islands, and in Gotland and Oland. The chronology of the discussed group is correlated with the Early Roman period. In that period the Celtic population of the Puchov culture (more precisely its Kraków group, migrating from the present-day Slovakia to the north of the Carpathians) coexisted in the right-bank Vistula basin with the Germanic population of the Przeworsk culture. With the new discoveries, the geographical range of drinking horns with bull’s head terminations has expanded further to the south (Greater Poland, central Masovia). The find from Koźmice Wielkie testifies to the occurrence of such fittings in southern Poland. This allows to formulate a hypothesis about the southern origin of such objects in the Przeworsk culture, and perhaps also in the Wielbark and Bogaczewo cultures. Analogical change in the interpretation has recently been proposed with regard to the brooches decorated with plastic representations of a bull’s head, some of which have horns decorated with granulation Previously interpreted as originating from western Scandinavia, by some scholars they are now considered to be of southern origin.