Deptford from Telegraph Hill in 1815

This illustration is entitled 'view of Deptford from Plow Garlic Hill, Brockley, AD 1815'. It is reproduced from 'The History of Deptford' by Nathan Dews, published in 1884. One thing that is unclear is whether this is a reproduction of an illustration from 1815, or an engraving done in the 1880s by someone imagining what ...