This is a representation of the coat of arms of the Roman Catholic Diocese of Erie.Blazon: Argent a processional cross patonce Vert on a chief wavy Azure a key fesswise ward to dexter Or
The following Commons images were used to create this image:

 File:HerbTarczaPL XVa.svg by NalesnikLD (talk · contribs)
 File:Coa Illustration Cross Patonce.svg by Madboy74 (talk · contribs)
 File:Meuble héraldique Clefs.svg by Zigeuner (talk · contribs)
Own work
Alekjds