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Oifig an Phoist, the Irish Post Office, was the section of The Department of Posts and Telegraphs which issued all Irish stamps up to 1984. After the division of the Department of Posts and Telegraphs into two semi-state organisations in 1984,[2] An Post took over the responsibility for all Irish postal services including the issuing of postage stamps.
GB used in Ireland
To identify postage stamps used in Ireland between 1840 and 1922, it is necessary to identify the postmark cancelling the stamp as being from an Irish town. Stamps used during this period are referred to as Great Britain used in Ireland.[3]
From 1840 to 1844, the Penny Black, and other stamps issued, were obliterated with the Maltese Cross cancellation. There was no text or numeral to help identify any of these cancels as Irish, but some Maltese Crosses are uniquely identifiable with certain Irish towns, including Belfast, Eyrecourt, Cork, Hollymount, Limerick and Mullingar.[4] From 1844 on, the cancels used included text or numerals that identified the post town. Cancels of both types are easier to identify if the stamp is still affixed to a cover, since this makes the complete postmark visible, but a stamp no longer affixed to a cover may still permit identification of the town of use if enough of the postmark can be seen on the stamp itself.
Stamp issuing authorities
Between 1922 and 1983 Oifig an Phoist, the Irish Post Office, a section of the Department of Posts & Telegraphs (P&T), issued all postage stamps in the 26 counties of Ireland. During this time they employed some of the following companies to overprint or print the stamps: Dollard, Thom, Irish Government Printers, Waterlow and Sons (London), De La Rue and Co., Bradbury Wilkinson and Co., Ltd., (London), Harrison and Sons Ltd., (London) and Irish Security Stamp Printing Ltd.[5]
Since 1984, An Post has issued all Irish postage stamps. Most have been printed by Irish Security Stamp Printing Ltd., though a small number were printed by Harrison and Sons Ltd., (London), Questa, Walsall Security Printing, Prinset Pty Ltd., (Australia) and SNP Cambec (Sprintpak) (Australia).[5]
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