{ "layers": [ { "layerId": 23, "layerName": "OS 1888-1890", "layerType": "Raster Layer", "minScale": 0, "maxScale": 0, "legend": [ { "label": "255 - 0", "url": "6fac5eec15119613284cf82cb697663a", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAA8CAYAAABmdppWAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAg0lEQVRYhe3QsQmAQBSDYTnS2LiFtYW4t5UTWIoLWAhyFoI3gSDWr0468w/wEYJKHAzSgSdiBvkgMEIG+SAwQgb5IDBCBn/xYdm2Rgre89VJwX15eik4recgBccjaxfmurRS8E1vkoKVOBikA0/EDPJBYIQM8kFghAzyQWCEDPLJP/wAOwcSiQ3robQAAAAASUVORK5CYII=", "contentType": "image/png", "groupId": "0", "height": 60, "width": 20 } ], "legendGroups": [ { "id": "0", "heading": "Value" } ] }, { "layerId": 24, "layerName": "OS 1889 - 1912", "layerType": "Raster Layer", "minScale": 0, "maxScale": 0, "legend": [ { "label": "255 - 0", "url": "a1fcc94b0af02b488d8ec8be60ec757c", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAA8CAYAAABmdppWAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAqUlEQVRYhe3VQRaDIAxFUYxpcf8rdWArIdJ0zJg3YMBfwD3kR0QjQhIYTSllFjxPGDR7s+DV6BPeMOgGg89Ggw4v5UsvxRt8QnP4hLXAYHvBI3/KwYIe9FIa3OH9o29KzD6y0SMb/aZYwGBJ8FI8Zu+w0KAL3GGhH6mKf4cCj1wlz97hTv++9jw7KLN3+IiyIBxd4HB0nOizwPEoYHRZ4HgUMLoscDx4h3+z2zu0BNegSAAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 60, "width": 20 } ], "legendGroups": [ { "id": "0", "heading": "Value" } ] }, { "layerId": 25, "layerName": "OS 1932-1939", "layerType": "Raster Layer", "minScale": 0, "maxScale": 0, "legend": [ { "label": "255 - 0", "url": "d2b53dca5dfd8c523299d9f7b9ddced2", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAA8CAYAAABmdppWAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAYElEQVRYhe3QsRGAAADCQApmcR7XcmptpSaFd5IBvogF54F17olsYJ8BIxrYZ8DQ38FbOlBQ0kWDJw2imeU0EMgE8m5gnwEjGthnwIgG9hkwooF9BoxoYJ8BIxrY9/2HD5YsAu9ZFrn7AAAAAElFTkSuQmCC", "contentType": "image/png", "groupId": "0", "height": 60, "width": 20 } ], "legendGroups": [ { "id": "0", "heading": "Value" } ] }, { "layerId": 26, "layerName": "OS 1951-1992", "layerType": "Raster Layer", "minScale": 0, "maxScale": 0, "legend": [ { "label": "1 - 0", "url": "59501e227f1870151148bacca2ea852b", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAA8CAYAAABmdppWAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAZklEQVRYhe3MMQ2AABRDwR9SEZjCBpoQgiZsQBg79y2EnoDTdcw9IJHZq2FOwGEa5gQcpmFOwGEa5gQc8/dwWWZDw3WfEw0HpoYx5YVrmBNwmIY5AYdpmBNwmIY5AYdpmBNwfCx8ALI/BPECIp0oAAAAAElFTkSuQmCC", "contentType": "image/png", "groupId": "0", "height": 60, "width": 20 } ], "legendGroups": [ { "id": "0", "heading": "Value" } ] }, { "layerId": 27, "layerName": "Exmouth 1:500 1889", "layerType": "Raster Layer", "minScale": 0, "maxScale": 0, "legend": [ { "label": "1 - 0", "url": "d12396d5697ed981bb40cabaa0fb2310", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAA8CAYAAABmdppWAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAYElEQVRYhe3QoRWAQADD0IqOw/6bMA883FU3AtEM8EUs6RGYSexrYJ8BIxrYZ8CIBvYZMKKBfQaMaOBPH140eNMgmllOA4FMIGcD+wwY0cA+A0Y0sM+AEQ3sM2BEA1X3AjpeAvECdmOTAAAAAElFTkSuQmCC", "contentType": "image/png", "groupId": "0", "height": 60, "width": 20 } ], "legendGroups": [ { "id": "0", "heading": "Value" } ] } ] }