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![[Mechanic's license issued to Clyde Pangborn]](/img/placeholder.gif?1762209064 "[Mechanic's license issued to Clyde Pangborn]")
United States. Department of Commerce. Aeronautics Branch, [Mechanic's license issued to Clyde Pangborn], [2005-12-27_text_075]. Museum of Flight Digital Collections, accessed 15/12/2025, https://digitalcollections.museumofflight.org/nodes/view/9068