For purposes of this article, the Director of Finance may, by executive order, authorize the withdrawal from the General Fund of a sum of money not to exceed the amount of the unsold bonds which have been authorized by the committee to be sold pursuant to this article. Any sums withdrawn shall be deposited in the Veterans’ Farm and Home Building Fund of 1943. All money made available under this article to the board shall be returned by the board to the General Fund from receipts from the sale of bonds sold under this
article, together with interest at the rate of interest fixed in the bonds so sold.