This instance is from Wikipedia and will be reused underneath a CC BY-SA license. They are often sculpted into a variety of designs for the duration of this process, at times resulting in deep thumb-print like indentations on their own surfaces named regmaglypts. From Wikipedia This instance is from Wikipedia https://alexisxpcmu.tribunablog.com/helping-the-others-realize-the-advantages-of-sculpted-md-lakewood-50746926