This vintage 60'S United States Official Postal Zone Guide covers San Francisco, Oakland, and Berkley. It provides essential information about the postal zones in these cities, making it a valuable resource for stamp collectors and postal history enthusiasts alike. The guide was manufactured in the United States, ensuring its authenticity and quality. Whether you're interested in the history of the postal service or just collecting stamps, this guide is a must-have. It's a great addition to any collection and provides a unique glimpse into the past. Don't miss out on the opportunity to own this piece of postal history!