ActuallyAdditions/src/main/resources/assets/actuallyadditions/blockstates/blockBookletStand.json

{
  "forge_marker": 1,
  "defaults": {
    "model": "actuallyadditions:blockBookletStand",
    "transform": "forge:default-block"
  },
  "variants": {
    "normal": [{}],
    "inventory": [{}],
    "meta": {
      "0": { "y" : 180 },
      "1": { "y" : 0 },
      "2": { "y" : 90 },
      "3": { "y" : 270 }
    }
  }
}