Saorstát Éireann envelope marked "Sitting Room Grate", containing photographs and photostats of burnt fragments,

[undated].
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Bibliographic Details
Format: Manuscript
Language:English
Subjects:
World War, 1939-1945 > Secret service > Germany
World War, 1939-1945 > Secret service > Ireland
World War, 1939-1945 > Cryptography
Ireland > Foreign relations > Germany
Germany > Foreign relations > Ireland
Notes:Photostats (one positive & one negative). Most of the items have been cut to shape with irregular dimensions. Mathematical calculations on the envelope.

Physical description: 1 item (27 photographs & 2 pages).

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Arrangement:Item
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Saorstát Éireann envelope marked "Sitting Room Grate", containing photographs and photostats of burnt fragments,

[undated].
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Bibliographic Details
In Collection: Richard J. Hayes Papers, 1902-1976.
Language:English
Extent:1 item (27 photographs & 2 pages).
Format:Manuscript
Call Number: MS 21,981/17 (Manuscripts Reading Room)
Rights:Reproduction rights owned by the National Library of Ireland.