minecraft-assets/assets/minecraft/models/block/bell_wall.json

{
    "textures": {
        "particle": "block/bell_bottom",
        "bar": "block/dark_oak_planks"
    },
    "elements": [
        {
            "from": [3, 13, 7],
            "to": [16, 15, 9],
            "faces": {
                "north": {"uv": [2, 2, 14, 4], "texture": "#bar"},
                "east": {"uv": [5, 4, 7, 6], "texture": "#bar"},
                "south": {"uv": [2, 3, 14, 5], "texture": "#bar"},
                "west": {"uv": [5, 4, 7, 6], "texture": "#bar"},
                "up": {"uv": [2, 3, 14, 5], "texture": "#bar"},
                "down": {"uv": [2, 3, 14, 5], "texture": "#bar"}
            }
        }
    ]
}