Ink Tablet Decorated with Mythical Horse and the Eight Trigrams

Dark gray rectangular ink tablet with rounded corners. The top edge features a wave-like design with scroll-like patterns on either side. Three Chinese characters are carved across the top center. A mythical horse-like creature with a dragon-like head and a long tail is centered, with flames or smoke emanating from its back. The creature appears to be running or jumping over waves carved at the bottom. The sides have a wave-like design with a pattern resembling a vine or tendril.