Update: Published the version with .6mm recessed faces instead of .4mm. Added new pictures.
A die from dice poker, as seen in The Witcher 2. Inspired by https://www.youtube.com/watch?v=R3YIG1zIYCo - I didn't see a model available that I liked, so I created my own from the reference image at http://dicecollector.com/images/large/0b/34d471f4c83a52f82c47fa3e703943.jpg using Fusion 360 and Photoshop.
You can grab the original Fusion 360 file at https://a360.co/2VDuNs0 .
The author hasn't provided the model origin yet.