| Catalog Page, Park Sherman, A Division of Ketcham & McDougall, Inc., 465 Eagle Rock Avenue, Roseland, N.J. 07068. Publication date 1987-1988. |
| Page 15, Eldon Office Products, P.O. Box 22667, Long Beach, Calif. 90801-5667. Publication date 1989. |
| Pages 10, 11, 13, 14, and 20, Eldon Office Products, 1990 Illustrated Price List, P.O. Box 22667, Long Beach, Calif. 90801-5667. Publication date Jan. 1, 1990. |
| Pages 7 and 8, Rubbermaid Commercial Products Inc., 3124 Valley Avenue, Winchester, Va. 22601. Publication date 1986. |