Concertina Pictures

A concertina. Button keys and a handle are located on each of the traditional hexagonal-shaped ends of the concertina (here we can just see the left hand end). Handmade concertinas may take up to 200 hours to build, whereas mass-produced concertinas are cheaper to buy but look less attractive.
The concertina pictured above is an "English concertina" (identifiable by its thumb and little finger holds).

A miniature concertina
Note: This picture gallery page features photos (photographs) of concertinas, plus drawings, paintings, diagrams, images and illustrations of them.