http://www.rssboard.org/rss-specification 720 XTF Search Results (docsPerPage=100;f277-subject=Buttons -- United States -- Catalogs) https://catalog.wrhs.org/collections/search?docsPerPage%3D100;f277-subject%3DButtons%20--%20United%20States%20--%20Catalogs Results for your query: docsPerPage=100;f277-subject=Buttons -- United States -- Catalogs Thu, 01 Jan 1970 12:00:00 GMT All for the cause: campaign buttons for social change, 1960s-1990s. Sievert, William A., Engers, Joe. https://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc https://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc Thu, 01 Jan 1970 12:00:00 GMT 200 years of political campaign collectibles. Warda, Mark. https://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc https://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc Thu, 01 Jan 1970 12:00:00 GMT