Columbia-Southern Chemicals Volume 1, Number 1, Spring 1956 - Volume V, Number 2, Winter 1961. PPG Chemicals Volume VI, Number 1, Fall 1961 - Volume X, Number 4, Winter 1966. PPG Coatings & Resins Volume 1-4, 1965-68. (4 Bound Volumes)
Pittsburgh Plate Glass Co. Hardcover. Includes - Columia-Southern Chemicals Volume 1, Number 1, Spring 1956 - Volume V, Number 2, Winter 1961 (12 Issues Bound Together as a Single Volume including Original Covers); PPG Chemicals Volume VI, Number 1, Fall 1961 - Volume X, Number 4, Winter 1966 (18 Issues.....