'Surveying in Donegal' -St. Martin's Le Grand Vol. 1
1850/60 Proof Sheet of Miscellaneous Postmarks.
1947 Airmail Rates.
An act for the setling of the postage of England Scotland and Ireland - 17 September 1656
Eighth Supplement for The Postmarks of Great Britain and Ireland.
Extracts from ''England's Postal History to 1840, with notes on Scotland, Wales and Ireland'' regarding the Post Office.
Extracts taken from 'Eolai an Phoist Post Office Guide 1964. Volume 1, Inland Services and General Information' regarding the Post.
Fifth Supplement for The Postmarks of Great Britain and Ireland.
G.P.O. Notice 1868
General Post Office Circulation Map of Ireland (1907)
History of the Post Office in Ireland.
Inishmann Post office on Inishakra Island 1914.