This "Sketch plan of the City of Glasgow about 1560" appeared in Robert Renwick's History of Glasgow published in 1919. It appears to have been based on the 1547 map which was produced in 1894 to illustrate the book edited by Renwick, Protocols of the Town Clerks of Glasgow.
Reference: Mitchell Library, GC 941.435 REN
Reproduced with the permission of Glasgow City Council, Libraries Information and Learning
History of Glasgow, maps, Protocols of the Town Clerks of Glasgow