"A detailed square grayscale high-contrast engraving of a beaver head, rendered in intricate black-and-white lines with sharp edges and bold textures, designed for use on a coaster. The beavers face is centered, with lifelike features including expressive eyes, textured fur, and a subtle sense of strength and calm. The surrounding border features a stylized mountain and forest pattern, with jagged peaks, dense trees, and winding river and a beaver dam.