Except in the following cases, such guardian shall cause the estate to be appraised by two or more disinterested persons, to be appointed by the Probate Division of the Superior Court:
(1) when all the estate of the ward is in money, stocks, notes or other demands;
(2) when the ward is a minor, and his or her estate, besides money, stocks, notes or other demands does not amount to the sum of $50.00;
(3) when the value of the estate appears by the records of the court to which the inventory is returnable.