One way to tell if thee butt plate is ivory is to shine a blacklight on it. Ivory will show up white, whereas synthetic materials will have a blue or purple hue. You can buy a blacklight flashlight at a hardware store for around $10.Yes,I've had ivory on a few cues before. I ca take a picture of the bumper tomorrow for you. Thanks
That said, in my opinion ivory is not a good material for a butt plate.