{
 "layers": [
  {
   "layerId": 0,
   "layerName": "HistoricMaps_Epoch4_1920to1965_1to2500",
   "layerType": "Raster Layer",
   "minScale": 5000,
   "maxScale": 0,
   "legend": [
    {
     "label": "High : 1 - Low : 0",
     "url": "4c2940626bdd71f36d300bde4a872867",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAA8CAYAAABmdppWAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAXElEQVRYhe3UwQkAMQwDwTy2/4YlcleE/AhYW4CJJ2Duvd8ZDNuT8w6Sztsv9PMDtc9Q+1Z2DdOoYRw1jKPnK46FhppeWfsM/fynuCunUcM4ahhHDePoxY5jn+EPhDiy86pHgCsAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 60,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "Value"
    }
   ]
  },
  {
   "layerId": 1,
   "layerName": "HistoricMaps_Epoch3_1905to1945_1to2500",
   "layerType": "Raster Layer",
   "minScale": 5000,
   "maxScale": 0,
   "legend": [
    {
     "label": "High : 1 - Low : 0",
     "url": "4c2940626bdd71f36d300bde4a872867",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAA8CAYAAABmdppWAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAXElEQVRYhe3UwQkAMQwDwTy2/4YlcleE/AhYW4CJJ2Duvd8ZDNuT8w6Sztsv9PMDtc9Q+1Z2DdOoYRw1jKPnK46FhppeWfsM/fynuCunUcM4ahhHDePoxY5jn+EPhDiy86pHgCsAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 60,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "Value"
    }
   ]
  },
  {
   "layerId": 2,
   "layerName": "HistoricMaps_Epoch2_1885to1910_1to2500",
   "layerType": "Raster Layer",
   "minScale": 5000,
   "maxScale": 0,
   "legend": [
    {
     "label": "High : 1 - Low : 0",
     "url": "4c2940626bdd71f36d300bde4a872867",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAA8CAYAAABmdppWAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAXElEQVRYhe3UwQkAMQwDwTy2/4YlcleE/AhYW4CJJ2Duvd8ZDNuT8w6Sztsv9PMDtc9Q+1Z2DdOoYRw1jKPnK46FhppeWfsM/fynuCunUcM4ahhHDePoxY5jn+EPhDiy86pHgCsAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 60,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "Value"
    }
   ]
  },
  {
   "layerId": 3,
   "layerName": "HistoricMaps_Epoch1_1845to1885_1to2500",
   "layerType": "Raster Layer",
   "minScale": 5000,
   "maxScale": 0,
   "legend": [
    {
     "label": "High : 1 - Low : 0",
     "url": "4c2940626bdd71f36d300bde4a872867",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAA8CAYAAABmdppWAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAXElEQVRYhe3UwQkAMQwDwTy2/4YlcleE/AhYW4CJJ2Duvd8ZDNuT8w6Sztsv9PMDtc9Q+1Z2DdOoYRw1jKPnK46FhppeWfsM/fynuCunUcM4ahhHDePoxY5jn+EPhDiy86pHgCsAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 60,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "Value"
    }
   ]
  },
  {
   "layerId": 4,
   "layerName": "HistoricMaps_Epoch3_1905to1945_1to10000",
   "layerType": "Raster Layer",
   "minScale": 25000,
   "maxScale": 5001,
   "legend": [
    {
     "label": "High : 1 - Low : 0",
     "url": "4c2940626bdd71f36d300bde4a872867",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAA8CAYAAABmdppWAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAXElEQVRYhe3UwQkAMQwDwTy2/4YlcleE/AhYW4CJJ2Duvd8ZDNuT8w6Sztsv9PMDtc9Q+1Z2DdOoYRw1jKPnK46FhppeWfsM/fynuCunUcM4ahhHDePoxY5jn+EPhDiy86pHgCsAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 60,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "Value"
    }
   ]
  },
  {
   "layerId": 5,
   "layerName": "HistoricMaps_Epoch2_1885to1910_1to10000",
   "layerType": "Raster Layer",
   "minScale": 25000,
   "maxScale": 5001,
   "legend": [
    {
     "label": "High : 1 - Low : 0",
     "url": "a2e496ef062ca901ef3f142cc1e46379",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAA8CAYAAABmdppWAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAWElEQVRYhe3VwQkAMQwDQRtW/Zd8V4TyMEhbgImHkLC73zwM4OW8QdLcPiHnByrPUHkrU0M3amhHDe3o83XQUHl/ivJWpoZu9NrYUUM7amhHoKHyVibO8Adf6QTqrVnhkwAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 60,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "Value"
    }
   ]
  },
  {
   "layerId": 6,
   "layerName": "HistoricMaps_Epoch1_1845to1885_1to10000",
   "layerType": "Raster Layer",
   "minScale": 25000,
   "maxScale": 5001,
   "legend": [
    {
     "label": "High : 1 - Low : 0",
     "url": "4c2940626bdd71f36d300bde4a872867",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAA8CAYAAABmdppWAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAXElEQVRYhe3UwQkAMQwDwTy2/4YlcleE/AhYW4CJJ2Duvd8ZDNuT8w6Sztsv9PMDtc9Q+1Z2DdOoYRw1jKPnK46FhppeWfsM/fynuCunUcM4ahhHDePoxY5jn+EPhDiy86pHgCsAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 60,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "Value"
    }
   ]
  },
  {
   "layerId": 8,
   "layerName": "HistoricMaps_Epoch4_1920to1965_1to2500",
   "layerType": "Raster Layer",
   "minScale": 5000,
   "maxScale": 0,
   "legend": [
    {
     "label": "High : 1 - Low : 0",
     "url": "4c2940626bdd71f36d300bde4a872867",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAA8CAYAAABmdppWAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAXElEQVRYhe3UwQkAMQwDwTy2/4YlcleE/AhYW4CJJ2Duvd8ZDNuT8w6Sztsv9PMDtc9Q+1Z2DdOoYRw1jKPnK46FhppeWfsM/fynuCunUcM4ahhHDePoxY5jn+EPhDiy86pHgCsAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 60,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "Value"
    }
   ]
  },
  {
   "layerId": 9,
   "layerName": "HistoricMaps_Epoch4_1920to1965_1to10000",
   "layerType": "Raster Layer",
   "minScale": 25000,
   "maxScale": 5001,
   "legend": [
    {
     "label": "High : 1 - Low : 0",
     "url": "4c2940626bdd71f36d300bde4a872867",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAA8CAYAAABmdppWAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAXElEQVRYhe3UwQkAMQwDwTy2/4YlcleE/AhYW4CJJ2Duvd8ZDNuT8w6Sztsv9PMDtc9Q+1Z2DdOoYRw1jKPnK46FhppeWfsM/fynuCunUcM4ahhHDePoxY5jn+EPhDiy86pHgCsAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 60,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "Value"
    }
   ]
  }
 ]
}