From Knowledge & Scientific May 1908
A New Moon Map from Manchester
A new map of the chief lunar features has been issued by Mr W Porterhouse of Manchester. The disc is 12 inches in diameter, and represents the formations as seen in an inverted telescope. Each feature is numbered, and in an index giving the corresponding name is appended on the side of the same sheet.
The whole is very distinct and easily readable by a small lamp. It would probably have added materially to the usefulness of the map if the chief dark features of the moon’s surface, such as the seas, had been either shaded or indicated, with a dark wash; when this is done it provides more definite landmarks for the recognition of the smaller features.