Prior service as applied to persons employed as teachers at the time of their entry into the Retirement System, and persons, as former teachers, to whom or on account to whose death payments are made by the Retirement System under Section 16.49 of this Code, shall mean City and County service, excluding City and County service as a member of the San Francisco City and County Employees' Retirement System, rendered before October 1, 1925.
(Added by Ord. 299-64, App. 11/9/64)