The concertina is a small, hexagonal musical instrument popular in the United Kingdom. It produces sound by pressing buttons that open valves, allowing air to flow through reeds. Invented in the 19th century by Sir Charles Wheatstone, it is known for its portability and distinctive sound, making it favored in folk music.

• United Kingdom Exclusive
• First Release Jun 25, 2024
• Stamp Series Sound of the World
• https://en.wikipedia.org/wiki/Concertina