The plan of Cork dated 1545 was engraved on a stone by P.J. Klasen from a copy of an ancient sketch in the Tower of London. It was first published in Tuckey's Cork Remembrancer (Cork, 1837). The original plan has been lost. Some historians doubt that the map is as old as is claimed.
The 1545 : Plan of Cork city map is also available in PDF format:1545 : Plan of Cork city_small_file(279KB)