In lieu of the surety bonds of surety companies, or of individuals, as aforesaid, the deposit of State moneys may be secured by the deposit with the State Treasurer of United States, municipal, or county bonds, to be approved by the Revenue Commissioners¹ and the Banking Commissioner,² or a majority of them, in an amount, measured by their actual market value, equal to the amount of deposit so secured and twenty per centum besides. Said bonds to be accompanied by proper assignments or power of attorney to transfer the same, and said trust deposit of securities to be maintained, on request, at the amount aforesaid, in case of any depreciation in the value thereof.