http://pec.lib.wvu.edu/record/P85231963-1972PPG shareholder news.Serial. Printed Ephemera Collection has: v.11:no.3 (1963:3rd quarter), v.13:no.1 (1965:May 17), v.13:no.2 (1965:Aug.16), 1972:Oct.. Issue for Oct. 1972 called also: 3rd quarter.Pittsburgh Plate Glass Company.Pittsburgh Plate Glass Company.14256