Huge developments in aviation took place during World War I & II with the increased use of fighters and bombers in aerial reconnaissance and offensive rolls. Post World War II heralded in the age of jet engines used on fighters, bombers, helicopters and commercial planes. Today's planes can be powered by alternative fuels, such as ethanol, electricity, and even solar energy and some are capable of leaving the Earth's atmosphere.
A Harrier jump jet made in pewter and supplied on a pin with clasp. The information card gives a brief history about the developments in aviation.