This is a representation of the coat of arms of Immaculate Conception Seminary in South Orange, New Jersey.
Argent, four bars wavy azure, over all the Chi-Rho and in flanks thereof the Greek letters Alpha and Omega gules, on a chief of the last, a crescent between two trefoils of the field.
The following Commons images were used to create this image:

 File:Coat of arms of the Lordship of Ireland.svg by NsMn (talk · contribs)
 File:Roman Catholic Diocese of Erie.svg by SanchoPanzaXXI (talk · contribs)
 File:Enonkoski.vaakuna.svg by Sodacan (talk · contribs)
Own work
Alekjds