Whenever the public administrator becomes the administrator of the estate of a decedent who at the time of his death left money on deposit with a commercial bank, the public administrator may allow such deposit to remain in the commercial bank and may deposit therein to the account of the decedent any moneys of said estate not required for current expenses of administration, and in such cases the public administrator need not deposit the same with the county treasurer. Moneys so

deposited, whether by the decedent or by the public administrator, may be withdrawn upon the order of the public administrator countersigned by a judge of the superior court when required for the purpose of administration or otherwise.