Pneumatic tyre
There are very nice pictures of the old John Boyd Dunlop in 1920, when he is eighty years old. He sits upright on his bicycle, dressed in a stylish black suit. He wears a strangely flattened hat and his long white beard is parted in two halves by the wind. This is how the Dubliners got to see the inventor of the pneumatic tire in those years. He had been wealthy twice in his life and was now poor again. He ran a small fabric store in town. His only son, for whom he had designed the pneumatic tire at the time, was long dead. And he knew that many would make a fortune with his brand name. Knowing that, he died a few months later.