Window to Gotham - Cosmic Tuning Fork

 is an epic base item.

Obtained from
The item is a reward for completing the collection Bat-Clues.

Feats

 * Bedlam, Battle and Beyond: Collect 1 Base Item from Metal Part I (10 points)
 * The Batman who Decorates: Collect 10 Base Items from Metal Part I (25 points)
 * Metal Goes With Everything: Collect 30 Base Items from Metal Part I (50 points)