{
 "layers": [
  {
   "layerId": 26,
   "layerName": "1972",
   "layerType": "Feature-Layer",
   "minScale": 1000000,
   "maxScale": 0,
   "legend": [
    {
     "label": "<Null>",
     "url": "9fe37c026b7bbed80941bb52b10a73d2",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAKklEQVQ4je3MIQEAAAzDsIP613w83MFFQLgyFmr4Ii30KBxhoUfhCAtPexArAFF5acCuAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "<Null>"
     ]
    },
    {
     "label": "<alle anderen Werte>",
     "url": "7666bab8bcab225194877438424a1a31",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAPklEQVQ4jWNpamr6z0BFwAIi6urqGKlhWFNT03+wgdQELKMGUgxYKDcCFYwaSDlgoYIZKGDUwBEThk1UrAYA9KEJWxTb01cAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "1",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "Link"
    },
    {
     "id": "1",
     "heading": ""
    }
   ]
  },
  {
   "layerId": 27,
   "layerName": "1962-1966",
   "layerType": "Feature-Layer",
   "minScale": 1000000,
   "maxScale": 0,
   "legend": [
    {
     "label": "<Null>",
     "url": "9fe37c026b7bbed80941bb52b10a73d2",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAKklEQVQ4je3MIQEAAAzDsIP613w83MFFQLgyFmr4Ii30KBxhoUfhCAtPexArAFF5acCuAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "<Null>"
     ]
    },
    {
     "label": "<alle anderen Werte>",
     "url": "7666bab8bcab225194877438424a1a31",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAPklEQVQ4jWNpamr6z0BFwAIi6urqGKlhWFNT03+wgdQELKMGUgxYKDcCFYwaSDlgoYIZKGDUwBEThk1UrAYA9KEJWxTb01cAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "1",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "Link"
    },
    {
     "id": "1",
     "heading": ""
    }
   ]
  },
  {
   "layerId": 28,
   "layerName": "1938",
   "layerType": "Feature-Layer",
   "minScale": 1000000,
   "maxScale": 0,
   "legend": [
    {
     "label": "<Null>",
     "url": "9fe37c026b7bbed80941bb52b10a73d2",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAKklEQVQ4je3MIQEAAAzDsIP613w83MFFQLgyFmr4Ii30KBxhoUfhCAtPexArAFF5acCuAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "<Null>"
     ]
    },
    {
     "label": "<alle anderen Werte>",
     "url": "7666bab8bcab225194877438424a1a31",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAPklEQVQ4jWNpamr6z0BFwAIi6urqGKlhWFNT03+wgdQELKMGUgxYKDcCFYwaSDlgoYIZKGDUwBEThk1UrAYA9KEJWxTb01cAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "1",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "Link"
    },
    {
     "id": "1",
     "heading": ""
    }
   ]
  }
 ]
}