The coat of arms of Regis Canevin, Bishop of the Roman Catholic Diocese of Pittsburgh from 1904 to 1921.
Impaled. Dexter: Sable, a fess chequy argent and azure, in chief two crosses-pattées-arrondies or, over all in pale a sword, hilt in base, of the last (See of Pittsburgh). Sinister: Argent, an oak tree proper from a champagne sable, beneath it in base a plate (Canevin).
I used the following images to create this image:

 Bishop galero with fiocchi.svg by Alekjds (talk · contribs)
 Roman Catholic Diocese of Pittsburgh.svg by Alekjds (talk · contribs)
 DEU Herne COA historic.svg by MaxxL (talk · contribs)
Own work
Alekjds