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![[Memo from Donald W. Layman to Jeppesen and Company personnel]](/img/placeholder.gif?1791407027 "[Memo from Donald W. Layman to Jeppesen and Company personnel]")
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Layman, Donald W. , [Memo from Donald W. Layman to Jeppesen and Company personnel], [1996-11-26_text_105]. Museum of Flight Digital Collections, accessed 17/10/2026, https://digitalcollections.museumofflight.org/nodes/view/29874