Water Polo exhibition game between the white and red teams of Sweden during the unrecognized Athens 1906, Olympic Games. The white team won the 15 minutes game with 1-0.
The 1906 Summer Olympics, also called the 1906 Intercalated Games, were celebrated in Athens, Greece. These games are not awarded the title of Olympiad because they were held between the III and IV Olympiads. While medals were distributed to the participants during these games, the medals are not officially recognized by the IOC.
Source: “Album of Athens 1906, 2nd Olympics by P.Savvidis 1907 – courtesy of Mr. Spyros Diakakis