Ferrotype, also known as tintype or melainotype, is a photographic process using an iron plate coated with a photosensitive emulsion. There are a few synonyms for this process including ambrotype, which involves the use of a glass plate instead of iron, and daguerreotype, which utilizes a silver-coated plate. Each of these processes creates unique images with distinct qualities, making them popular in the 19th century. While ferrotype may not be as widely used today, it remains a fascinating piece of photographic history and a testament to the creativity and ingenuity of early photographers.