http://www.rssboard.org/rss-specification 720 XTF Search Results (docsPerPage=100;f8-subject=Air mail stamps -- Catalogs) https://catalog.wrhs.org/collections/search?docsPerPage%3D100;f8-subject%3DAir%20mail%20stamps%20--%20Catalogs Results for your query: docsPerPage=100;f8-subject=Air mail stamps -- Catalogs Thu, 01 Jan 1970 12:00:00 GMT Price list of air mail stamps. Charlat, L. W. 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 Airmail stamps of the world: Complete listing with prices. Economist Stamp Co 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 Price list of 20th century mint stamps: Airposts, pictorials, semi-postals, commemoratives. Elliott Stamp Shop 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 Postage stamps for collection. Ercole Gloria 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