http://edinburghcouncilmaps.info/arcgis/rest/services/Historical/1850s/MapServer
http://edinburghcouncilmaps.info/arcgis/rest/services/Historical/1914to1923/MapServer
http://edinburghcouncilmaps.info/arcgis/rest/services/Historical/1931to1938/MapServer
http://edinburghcouncilmaps.info/arcgis/rest/services/Historical/1955to1962/MapServer
http://edinburghcouncilmaps.info/arcgis/rest/services/Historical/1960s/MapServer
http://edinburghcouncilmaps.info/arcgis/rest/services/Historical/1997/MapServer
http://edinburghcouncilmaps.info/arcgis/rest/services/Historical/Late1800s/MapServer