A circular wooden disc is affixed to the rough, dark grey-brown bark of a tree trunk in Dolni Rakovets, Bulgaria

A circular wooden disc is affixed to the rough, dark grey-brown bark of a tree trunk in Dolni Rakovets, Bulgaria. The disc, appearing to be a cross-section of a log, is painted with an alternating pattern of bright yellow and light blue-green segments, forming a radiating design. A single silver Phillips head screw secures the disc to the bark, positioned slightly above its horizontal midpoint. A distinct vertical crack extends through the entire diameter of the disc, bisecting the painted segments. The tree bark exhibits deep furrows and irregular textures, with some lighter specks visible on the lower right portion.