Zemlja | Organizacija | |
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Irska | Irish Philatelic Traders Association (IPTA) |
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Izrael | Israel Philatelic Federation (IPF) |
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Sjedinjene Države | Lighthouse Stamp Society |
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Sjedinjene Države | National Stamp Dealers Association (NSDA) |
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Nizozemska | Nederlandsche Vereeniging Van Postzegelhandelaren (NVPH) |
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Norveška | Norsk Frimerkehandler Forening (NFHF) |
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Austrija | Österreichischer Briefmarken- und Münzen Händlerverband (ÖBMHV) |
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Malezija | Penang Philatelic Society |
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Internet | Philatelic Webmasters Organization (PWO) |
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Sjedinjene Države | Polonus Polish Philatelic Society |
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Kanada | Postal History Society of Canada (PHSC) |
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Internet | Railway Philatelic Group |
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Australija | Rhodesian Study Circle |
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Novi Zeland | The Royal Philatelic Society of New Zealand |
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Švicarska | Schweizer Briefmarken-Händler-Verband (SBHV) |
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Sjedinjene Države | Scouts On Stamps Society International |
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Sjedinjene Države | Society for Costa Rica Collectors (SOCORICO) |
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Švedska | Sveriges Frimärkshandlareförbund (SFHF) |
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Švicarska | Universal Postal Union (UPU) |