The arms that were used were the arms of Massey of Pottington. I’ve replaced them with the arms commonly used for Masci of Normandy. In fact. The family la Ferre-Mace used different arms, but due to the still questionable relation between these two families I won’t make that change until we have further evidence that ties them together. It is generally considered that this is one of the possible beginnings of the Massey line, although other exist also.