An Act amending the act of May 9, 1949 (P.L.908, No.250), entitled, as amended, "An act relating to public records of political subdivisions other than cities and counties of the first class; authorizing the recording and copying of documents, plats, papers and instruments of writing by photostatic, photographic, microfilm or other mechanical process, and the admissibility thereof and enlargements thereof in evidence; providing for the storage of duplicates and sale of microfilm copies of official records and for the destruction of other records deemed valueless; and providing for the services of the Pennsylvania Historical and Museum Commission to political subdivisions," further providing for methods for the copying of certain records.