“Official Mail of the Provisional Government of the Irish Free State 1922-1937”
Palmares Award Type Archives
Raymond Murphy
Official Mail of the Irish Provisional Government and the Irish Free State
David J. Brennan
Railway Parcel Stamps of Ireland 1855-1900
George Nicholson
Irish History Through the Post 1800-2000
Bernard Clancy
Political and Propaganda Labels of Ireland 1865-1922
Robert M. Benninghoff
Gerl Definitive Coils
Robert M. Benninghoff
Postage Due Labels Used in Ireland from 1914 -1926
Bernard Clancy
Ireland Propaganda Labels 1865 – 1922
William A. Barber & A. Frank Brown
The Impressed Duty Stamps of Ireland
Joseph E. Foley
Ireland – The Ubiquitous Tuppence Map Stamp