These vintage Mid-Century Modern bookends are crafted from carved onyx marble, often featuring translucent stone with unique veining patterns.Material: Made of natural onyx or marble stone, typically showcasing a banded or marbled appearance.Design: Often styled as stylized horse heads or chess knight figures popular in the 1970s.Function: Heavy enough to securely hold books on shelves, functioning as both decorative sculptures and functional library accessories One has chipped ears