convey special messages. Linn's Stamp News. Amos Media Company. 1998-11-30 [2018-05-13]. （原始内容存档于2018-01-18）. The first U.S. Love stamp was an 8¢ issue (Scott

黑便士

National Postal Museum These stamps are the legends of the hobby（页面存档备份，存于互联网档案馆） Linn's Stamp News Refresher Courses Penny Black Catalog Information

冈布茨

就仿佛动了起来。这套邮票是和中国2010年上海世界博览会上展出的冈布茨模型一起发售的（3月1日至10月31日）。Linn's Stamp News（英语：Linn's Stamp News）杂志也进行了报道。冈布茨模型2009年7月12日在英国广播公司的QI（英语：QI）系列剧集中和主持人斯蒂芬·

奴隶制度

Sellers, James B. Slavery in Alabama (1950). Sydnor, Charles S. Slavery in Mississippi (1933) Stamp, Kenneth M. The Peculiar Institution: Slavery in the Ante-Bellum

Found in articles

愛 (雕塑)

convey special messages. Linn's Stamp News. Amos Media Company. 1998-11-30 [2018-05-13]. （原始内容存档于2018-01-18）. The first U.S. Love stamp was an 8¢ issue (Scott

黑便士

National Postal Museum These stamps are the legends of the hobby（页面存档备份，存于互联网档案馆） Linn's Stamp News Refresher Courses Penny Black Catalog Information

冈布茨

奴隶制度

Sellers, James B. Slavery in Alabama (1950). Sydnor, Charles S. Slavery in Mississippi (1933) Stamp, Kenneth M. The Peculiar Institution: Slavery in the Ante-Bellum