Letter, Correspondece from W.J. Scala to E.J. Barker, Principal; of the Ballarat School of Mines, 28/02/1968 Physical description Letter from W.J. Scala concerning bringing his studies up to date and meeting the requirements for a Diploma of Electrical Engineering. Subjects w.j. scala, jack scala, ballarat school of mines, e.j. barker, electrical engineering, alumni