War Diaries Talk

Subject: AWD0003ukm

Subject AWD0003ukm Full subject data (JSON)

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  • deehar by deehar

    Page headed "Visual Signalling"

    Posted

  • deehar by deehar

    General description of aims and organisation of visual signalling to be used in the event of telephone lines being cut

    Posted

  • cyngast by cyngast moderator

    #equipmentevaluation Effectiveness of lamp signalling.

    Posted