A copy of the plat of the City of Baltimore from the record thereof in the Mayor’s office, or from the record thereof in the office of the Clerk of the Superior Court of Baltimore City, duly certified under seal by the keeper of such records respectively, shall be evidence. P.L.L., 1860, §865 1915, §842 1927, §842 1930, §842 1938, §1123 1949, §309 1969, §2-2 1888, ch. 4, §826 1898, ch. 123, §842