Ulster Office of Arms (Stamp 1)

Ulster Office of Arms (Stamp 1)
Arms:
Or a cross gules in chief a harp a lion passant gardant and a portcullis
Motto: Miserere mei Deus
Order: St. Patrick
Dimensions (height x width): 119mm x 59mm
Legend: The Ulster Office of Arms
Coronet: King of Arms
Heraldic Charges: crossharplion passant gardantportcullis

Sources