A Woodburytype photograph entitled 'Crater of Vesuvius', taken by James Nasmyth. This is an illustration from a book, published in 1874, entitled 'The Moon, Considered as a Planet, a World, and a Satellite' by Nasmyth and James Carpenter, an astronomer at the Royal Observatory in Greenwich. The book was based on their observations of the moon through drawings, photographs and models. A Scottish engineer, Nasmyth is better known for his inventions of the steam hammer and a six-inch diameter reflecting telescope. The Woodburytype was a photomechanical process patented in 1864 by Walter Bentley Woodbury. It produced high quality images used for book illustration and remained popular until about 1900.
© National Museum of Science & Media / Science & Society Picture Library