What describes Jerry Baker from the book of black beauty?

Jerry is an elderly cart-horse owned by a cabman called Grant. At the beginning of the story, Jerry is 18 years old and has spent most of his life pulling a cab up and down the busy London streets. He is described as a very kind, steady, strong, hardworking, clever and long-suffering old cob. He is also very wise, and he is always willing to help those who are in need. Jerry is a true friend to Black Beauty, and he has a positive influence on him.