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Bears on Postage Stamps
Exhibits collection of postage stamps on different kinds of bears. Includes image gallery and scientific names.
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Bone and Stone
Features collection of stamps that depicts prehistoric man specifically the Neanderthal.
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Cats on Stamps
Displays collection of stamps that features cats. Includes gallery of pictures categorized by country.
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Cryptozoology and Philately
Supplies list of stamp collections viewable in images thumbnails with catalog numbers for each item.
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Dog Stamps, Cards and Gifts From Around the World
Showcases dogs in stamps with gallery pictures of collections categorized by breed and in alphabetical order.
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Entomophilia
Spreads information about invertebrates through the use of stamps with gallery pictures.
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The Federal Duck Stamp Program
Provides details on duck stamp collection with images, programs, products, and contact information.
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Feline Philately
Presents list of thematic stamp collectors interested in feline thematics for sale or exchange. Also covers photos, message boards, and member database.
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Geology on Post Stamps
Displays list of different stamps organized by category. Can be viewable both in two languages.
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Giant Panda Stamps
Selection of giant panda stamps with scanned images and descriptions.
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Horse on Stamps
Shows collection of horse stamps with different themes. Includes catalog of the items, guest book and related links.
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The Illustrated Catalogue of Dinosaur Stamps
Includes index list of stamps in alphabetical order with item updates.
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National Birds on Stamps
List of names of national birds illustrated in stamps. With stamp images.
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Reptile-Stamps
Presents stamps with illustrations of reptiles and amphibians. Stamp listings may be viewed by country or title.
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Roses on Postage Stamps
Presents a list of rose stamps, an image gallery, illegal issues involving rose stamp collections, and a list of stamps that are not considered rose stamps although they have "rose" in their names.
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Sea Turtle Postage Stamps of the World
Collection of over 1,200 scanned stamps and souvenir sheets. Aims to raise awareness on sea turtle conservation.
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Stamps on Snorkeling and Scuba Diving
Depicting and promoting underwater exploration through stamps issued in different years.
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Theme Birds on Stamps
Comprehensive collection of bird stamps issued in different countries. Viewable by country or species lists.