Welcome to Centennial Auctions Centennial was established over thirty years ago to provide numismatic and philatelic auction services. Upcoming Auctions Upcoming Sales April 11, 2023 April 2023 Coin Catalog Auction Results Sale Results 11/14/2022 Sale Results 11/7/2022 Sale Results 10/10/2022 Sale Results 8/9/2022 Sale Results 8/2/2022 Sale Results 5/23/2022 Sale Results 4/18/2022 2022 Auction Catalogs November Coin 2022 Catalog (Both Dates) November Stamp 2022 Catalog October 2022 Catalog August 2022 Catalog May 2022 Catalog April 2022 Catalog