Correspondence, documents, and other materials related to the bicentennial Postal Service employees award and bicentennial postage stamp design., 1976, Series 4, Box: 1, Folder: 7. City of San Bernardino Bicentennial Commission records, SC-027. Pfau Library Special Collections. https://archivesspace.csusb.edu//repositories/3/archival_objects/15128 Accessed December 15, 2025.