This example is from Wikipedia and could be reused less than a CC BY-SA license. They are often sculpted into different shapes in the course of this method, occasionally leading to deep thumb-print like indentations on their surfaces known as regmaglypts. From Wikipedia Good Vocabulary: relevant words and phrases Sculpture https://codyjmkgy.shotblogs.com/the-single-best-strategy-to-use-for-sculpted-md-lakewood-50384687