Sec. 24. FORMER EMPLOYEES NOW RECEIVING PENSION. Immediately upon this Act becoming a law, the former employees of any such Police Department who are now being paid a pension from a pension fund, shall hereafter be paid a monthly pension of One Hundred Dollars ($100) per month out of the Pension Fund provided for herein. Any such city shall have the right and option to pay such former employees any amount over and above those hereinabove provided for, but such additional payments, if any, shall be borne by such city and not the Pension Fund.