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The Bethlehem Steel Era

1902 – 1982 in San Francisco, California
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The Union Iron Works Era

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© 2026 Pier 70 Time Machine. All rights reserved. Pier 70 Time Machine is a Joint Venture (DBA registered 2025 in San Francisco, CA) jointly operated by the Potrero Hill Archives Project and the Bethlehem Shipyard Museum, both independent 501(c)(3) nonprofit organizations incorporated in 2012. Contributions are tax-deductible as permitted by law.

Uncategorized

The Bethlehem Steel Era

The Union Iron Works Era