Edithistory:Chess on Stamps Study Unit
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| oldid | date/time | username | edit summary |
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| 1331134242 | 2026-01-04T19:16:40Z | Mgroesler1 | |
| 1331132843 | 2026-01-04T19:05:47Z | Mgroesler1 | Added a reference |
| 1331105283 | 2026-01-04T15:24:21Z | Mgroesler1 | Modified language |
| 1330998828 | 2026-01-03T21:40:18Z | Qwerfjkl (bot) | [[WP:BOT|Bot]]: Adding AfC template ([[Wikipedia:Bots/Requests for approval/Qwerfjkl (bot) 15|Task 15]]) |
| 1330998732 | 2026-01-03T21:39:27Z | Mgroesler1 | [[WP:AES|←]]Created page with 'Introduction The Chess on Stamps Study Unit (COSSU) is an international philatelic organization devoted to the collection and study of postage stamps and other postal material related to the game of chess. It is a study unit of the American Topical Association (ATA) and an affiliate of the American Philatelic Society (APS). History The unit was established in 1979 to provide a forum for thematic or "topical" philatelic collectors specializing in chess. A...' |
