Societies and Federations
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Aberystwyth University Philatelic Society
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Association of British Philatelic Societies
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Barry Philatelic Society
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Federation of South Wales Philatelic Societies
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National Philatelic Society
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Newport & Gwent Philatelic Society
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The Royal Philatelic Society London
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Welsh Philatelic Society

Resources
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AskPhil
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British Colonial Stamp Websites
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British Postal Museum & Archive
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Cardiff Machine Cancellations 1905 - 1952
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Care and Preservation of Philatelic Materials
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Comparative Stamp Forgery Identification Site
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Czeslaw Slania ~ Master engraver
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Days of the Week calculator
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EXPONET online philatelic exhibition
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Gibbons Stamp Monthly ~ Archive search
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Glossary of Stamp Collecting Terms
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King George V Silver Jubilee
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Machin catalogue and database
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Murray Payne ~ GVI Stamp Specialist
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Postal Administrations list ~ with links
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Reginald M Phillips (GB) collection online
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Royal Mail ~ Collecting
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Sandafayre Stamp Library
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Stamp & Coin Mart
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Stamp Magazine
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Stanley Gibbons Online Stamp Catalogue
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Tips on Scanning
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UPU Member Countries & Joining Dates
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UPU Specimen Stamps (Commonwealth)

Accessories
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Michael Kay ~ Collecting accessories
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Prinz Publications ~ Albums and accessories
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Vera Trinder Ltd ~ Collecting accessories and books