To Be Unseen

Riddle: Tool of thief, toy of queen. Always used to be unseen. Sign of joy, sign of sorrow. Giving all likeness borrowed. What am I?

Answer: A mask.

Source: https://www.riddles.com/408

Tool of thief, toy of queen. Always used to be unseen. Sign of joy, sign of sorrow. Giving all likeness borrowed. What am I? — To Be Unseen by Anonymous v1.

Riddle: Tool of thief, toy of queen. Always used to be unseen. Sign of joy, sign of sorrow. Giving all likeness borrowed. What am I? Answer: A mask. — by Anonymous v2.