Oscar Swahn aims at a target during the single-shot running deer at the London Olympics (July 9th, 1908). Swahn (SWE) was the oldest Olympian, oldest Olympic gold medallist, and oldest Olympic medallist of any colour.
At the 1908 Games, he won gold in the running deer event and team single-shot event (his son Alfred was also on the team), and bronze in the double-shot event. Joshua Millner (GBR) was the oldest gold medallist at these Games (in the 1,000-yard rifle), but Swahn took that record at the 1912 Olympics, where he won gold in the double-shot team event.
Swahn competed in the 1920 Games for a third and final time, winning a silver medal in the double-shot team event at the age of 72 years old. It was at these Games that he took the record of oldest Olympian and oldest Olympic medallist.