Royal Ulster Constabulary, Costello, M. J., Donegan, B., & Irish Free State. Army. (1924). Copy of bi-monthly intelligence summary for period to 15th September 1924, supplied by the Royal Ulster Constabulary, with covering letters by Colonel Michael Joseph Costello, Director of Intelligence, Irish Free State Army, and Lieutenant B. Donegan.
MLA CitationRoyal Ulster Constabulary, et al. Copy of Bi-monthly Intelligence Summary for Period to 15th September 1924, Supplied by the Royal Ulster Constabulary, with Covering Letters by Colonel Michael Joseph Costello, Director of Intelligence, Irish Free State Army, and Lieutenant B. Donegan. 1924.
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