Sec. 10. PENSION RATES. From and after January 1, 1942, any member who shall have been a member of such police department for the period of twenty-five (25) years, and who shall have reached the age of fifty (50) years, shall be entitled to a retirement pension of Seventy-five Dollars ($75) per month for the rest of his life upon his retirement from said police department. Upon the completion of the said twenty-five (25) years of service, such pension board shall issue to him a certificate showing that he is entitled to said retirement pension, and thereafter, when such member retires from the police department, whether such retirement be voluntary or involuntary, such monthly payments shall forthwith begin, and continue for the remainder of said member's life. Provided, however, that payments shall not commence until such member is fifty (50) years of age, and further provided that members who are eligible for a pension but who continue in the department shall make their per capita contributions until they retire from the department.

In computing the twenty-five (25) years service required for retirement pension, interruption of less than one year out of service, shall be construed as continuous service and such period out of service shall not be deducted from the twenty-five (25) years, but if out for more than one year and less than five (5) years, credit shall be given for prior service, but deduction made for the length of time out of service. If out of service more than five (5) years, no previous service prior to said time shall be counted.

Service with any such city in some other department, prior to January 1, 1939, shall be included in the twenty-five (25) years above provided for, but service after January 1, 1939, must be in the police department. The pension board may, within its discretion, provide for the payment of such retirement pension to a former member or members of the police department who have heretofore served for the twenty-five-year period and who have reached the age of fifty (50) years, and it is the intention hereof to include in the group of former members those who have heretofore been retired by any such city and who are drawing partial pay or compensation from such city.