There shall be deposited and placed in the cumulative reserve fund for municipal shop building the initial sum of twenty thousand dollars derived from the sale of general obligation bonds issued pursuant to Ordinance No. 372, together with all sums which shall be budgeted and appropriated for such purpose in the future. The moneys in the fund shall be allowed to accumulate from year to year until the City Council shall determine to expend the moneys for the purposes herein specified. (Ord. 379 § 3, 1965).