*SCP-1139 consists of a metallic grey rectangular block, roughly 20 centimeters high and 5 centimeters square at its base The overall density of the object is roughly double that of iron, and the object is denser near the top The object has thus far proved impervious to both deterioration and damage, making a determination of the object's age impossible The sides are patterned with square protrusions in an unrecognized pattern, which can be confirmed by touch