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In philately a lettercard or letter card is a postal stationery item consisting of a folded card with a prepaid imprinted stamp. The fact that it is folded over gives the writer twice as much room for the message compared with a postal card. The message is written on the inside and the card is then folded and sealed around the edges. The recipient tears off and discards the perforated selvages to open the card. The lettercard was first conceived by a Hungarian named Akin Karoly〔Van Gelder, Peter J.; ''The Collectors' Guide to Postal Stationery'', A Squirel Publication (1997) ISBN 0-947604-07-3〕 and introduced in Belgium in 1882. Private issues were used in Great Britain in 1887.〔Mackay, James. ''Philatelic Terms Illustrated''. 4th edition. London: Stanley Gibbons, 2003, p.78. ISBN 0-85259-557-3.〕 The first official British letter card was issued in 1892.〔 In Newfoundland ''reply lettercards'' were introduced in 1912 which included a small reply card.〔 The United States has never issued letter cards.〔 Collectors of letter cards not only have to deal with the varieties of card stock and color, but with the additional variations that come with the perforation of the cards.〔 As with adhesive stamps, a perforation gauge will be a useful tool of the trade. The terms ''Letter Card'' or ''Air Mail Letter Card'' were sometimes used on aerogrammes prior to 1952, the year that the U.P.U. gave official recognition of the word ''aerogramme''.〔 But for aerograms, those terms are misleading. The use of the word "card" implies a heavier card stock when, in fact, many of these "cards" were actually printed on light paper and were letter sheets instead of letter cards. == See also == * Letter sheet * Aerogram 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Lettercard」の詳細全文を読む スポンサード リンク
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