Old Crest

 is a passive item found in a special room in the Oubliette.

Effects

 * Grants a piece of armor.
 * This piece of armor will always appear at the end of the health bar, and is destroyed upon taking damage.
 * Picking up regular armor before or after the Old Crest will move the Old Crest forward, making it impossible to protect it with armor.
 * Can be placed on an altar in the Gungeon Proper, which will reveal stairs leading to the Abbey of the True Gun.
 * The player will receive one regular piece of armor as replacement.