1. 1
    Published 1942
    In collection: Published Materials
    “...Philadelphia Signal Depot...”
    Book

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    Information for officers : a booklet intended principally for newly arrived officers reporting at the Philadelphia Signal Depot
  2. 2
    In collection: Published Materials
    “...Philadelphia Signal Depot...”
    Book

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    In-service training
  3. 3
    Published 1942
    In collection: Published Materials
    “...Philadelphia Signal Depot...”
    Book

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    Instruction circular November 16, 1842 : officers training school
  4. 4
    In collection: Published Materials
    “...Philadelphia Signal Depot...”
    Book

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    Training opportunities

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