Cool thanks
Top to bottom then left to right on the cross - CSSML NDSMD = Crux sacra sit mihi lux, no draco sit mihi dux. "Holy Cross be my light. May the devil not be my guide"
Upper right on outside seal going clockwise: VRS NSMV SMQL IVB = Vade retro Satana. Nunquam suade mi vana, sunt mala quae libas, ipse venina bibas. The initials for the exorcism prayer, which translates to "Begone, Satan" "Do not suggest to me vain things" "What you offer is evil" "Drink your own poison".
Big 4 letters in middle: The initials for Crux Sancti Patris Benedicti, which translates to "Cross of the Holy Father Benedict"