A heavy cast metal padlock of circular form, often referred to as a pancake or moon lock. The piece is constructed from a copper-based alloy, likely bronze or brass, featuring a dark, aged patina. The front face is embellished with a raised relief panel in a crescent shape, containing stylized scrolling motifs reminiscent of traditional ruyi clouds. A large circular aperture is positioned near the top to accommodate a hasp or chain. Three small, impressed circular marks are arranged symmetrically around the central motif: one at the upper left, one at the upper right, and one at the bottom center. A horizontal rectangular slot is visible on the edge, characteristic of a sliding bar locking mechanism. No letters, numbers, or manufacturer names are present on any visible surface; the three circular indentations are decorative or symbolic in nature rather than legible maker marks.