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| View | Abacus Auctions | 30 Aug 2020; Sale No: 242 | DiBiase Killeen (vendor) | Australia Australian states Cocos die proofs Great Britain Liechtenstein New Zealand Papua New Guinea GRI forgeries Norfolk Island |
| View | Alliance Auctions (John Auld) | 10 Apr 2020; Sale No: 263 | | General |
| View | Alliance Auctions (John Auld) | 08 May 2020; Sale No: 264 | | General |
| View | Alliance Auctions (John Auld) | 05 Jun 2020; Sale No: 265 | | British Commonwealth Great Britain Europe |
| View | Alliance Auctions (John Auld) | 07 Jul 2020; Sale No: 266 | | General |
| View | Alliance Auctions (John Auld) | 04 Aug 2020; Sale No: 267 | | General |
| View | Alliance Auctions (John Auld) | 01 Sep 2020; Sale No: 268 | | GB BC Europe Germany |
| View | Alliance Auctions (John Auld) | 06 Oct 2020; Sale No: 269 | | GB Saudi Arabia |
| View | Argyll Etkin | 01 Oct 2020; Sale No: 46 | | airmail wreck WW2 GB Bechuanaland Bolivia India Archer telegraph Ahmednagar Israel KUT Rhodesia South Africa Mafeking undercover Jewish refugee immigration camps France boite mobile maritime Liverpool Cumberland Scotland |
| View | Arphil | 28 May 1982; | | Lombardy-Venetia |
| View | Ashford Stamps | Mar 2020; Direct sale of Chalon Heads | | New Zealand Chalon Heads |
| View | Ashford Stamps | 26 Mar 2020; Sale No: 92 | | New Zealand British Commonwealth Europe |
| View | Athens Auctions | 18 Mar 2020; Sale No: 77 | | |
| View | Athens Auctions | 22 Apr 2020; Sale No: 78 | | Greece and general |
| View | Athens Auctions | 20 May 2020; Sale No: 79 | | Greece |
| View | Athens Auctions | 24 Jun 2020; Sale No: 80 | | Greece |
| View | Athens Auctions | 15 Jul 2020; Sale No: 81 | | Greece |
| View | Athens Auctions | 23 Sep 2020; Sale No: 82 | | Greece |
| View | Athens Auctions | 21 Oct 2020; Sale No: 83 | | Greece, Cyprus and other stamps |
| View | Athens Auctions | 18 Nov 2020; Sale No: 84 | | Greece |
| View | Auckland City Stamps Mail Sales | 19 May 2020; Sale No: 232 | | New Zealand airmails British Commonwealth Great Britain Liechtenstein |
| View | Auckland City Stamps Mail Sales | 14 Jul 2020; Sale No: 233 | | New Zealand British Commonwealth |
| View | Auckland City Stamps Mail Sales | 22 Sep 2020; Sale No: 234 | | New Zealand military cancels British Commonwealth Great Britain China |
| View | Auckland City Stamps Public Sales | 10 Oct 2020; Sale No: 19 | Richards (vendor) | NZ cancellations GB postcards China Mombasa Pitcairn BC |
| View | Auction Phila | 9 Jul 1991; Sale No: 52 53 | | British Colonies classics, Italy & Colonies |
| View | Austrophil/Rauch (Mail Sales) | 7 Jun 1994; Sale No: 20 | | Austria Germany Europe Overseas |
| View | AVH Stamp Auctions | 23 Feb 2020; Sale No: 12 | | General |
| View | Badische Briefmarken GmbH | 24 Sep 2002; Sale No: 8 | | Saxony Bergedorf Bavaria Wurttemberg |
| View | Badische Briefmarken GmbH | 21 Jan 2003; Sale No: 9 | | Germany Luxembourg Austria Netherlands Switzerland Israel Hungary & Thematics |
| View | Barrell, Bill | 2019; Sale No: 153 | | Great Britain |
| View | British Society of Australian Philately | 14 May 2020; May 2020 Convention Auction | | Australia |
| View | British Society of Australian Philately | 26 Oct 2020; | | Australia & States |
| View | Brych, Francois et Fils | 22 Jul 1994; Sale No: 116 | | France & Colonies, Europe |
| View | Cavendish Philatelic Auctions | 04 Dec 2019; Sale No: 826 | de Vall Williams Bishop Schumacher Grasham (vendor) | Napoleonic wars Burma France Crimean war Jamaica Papua New Guinea WW2 censor Jamaica Sudan Malta Great Britain |
| View | Cavendish Philatelic Auctions | 04 Mar 2020; Sale No: 828 | Jarvis Jones RPSL (vendor) | Jamaica die proofs essays New Zealand Cape of Good Hope Great Britain Mulready Franco-Prussian war literature |
| View | Cavendish Philatelic Auctions | 12 May 2020; Sale No: 829 | Muir Ball (vendor) | Hong Kong China Treaty Ports |
| View | Cavendish Philatelic Auctions | 13 May 2020; Sale No: 831 | Coxon (vendor) | Great Britain |
| View | Cavendish Philatelic Auctions | 03 Jun 2020; Sale No: 830 | Sussex Haslam Walker Maybury (vendor) | Great Britain Sussex Bolton Manchester Mulready 1840 France postal history airmails |
| View | Cavendish Philatelic Auctions | 30 Jul 2020; Sale No: 827 | RPSL NPS (vendor) | literature |
| View | Cavendish Philatelic Auctions | 08 Sep 2020; Sale No: 832 | Robert Johnson Cape of Good Hope & Howard Hughes reference collection of Maltese Cross & Numeral Cancellations (part 1) (vendor) | Great Britain & Worldwide |
| View | Cavendish Philatelic Auctions | 29 Oct 2020; Sale No: 834 | Royal Philatelic Society Library (vendor) | Philatelic literature |
| View | Channel Islands Specialists' Society | 25 Apr 2020; Sale No: NS12 | | Channel Islands |
| View | Channel Islands Specialists' Society | 24 Oct 2020; | | Channel Islands |
| View | Cherrystone | 08-09 Jan 2019 | | United States; German Colonies; British Commonwealth; Italian Colonies |
| View | Cherrystone | 20 Feb 2019; Sale No: | Pottow (vendor) | Great Britain |
| View | Cherrystone | 21 Feb 2019; Sale No: | Kulczycky (vendor) | Western Ukraine |
| View | Cherrystone | 12-13 Mar 2019 | | Rare Stamps and Postal History of the World |
| View | Cherrystone | 03 Mar 2020; | | Rare stamps & postal history of the World |
| View | Chipperfield, Michael | ; | | Great Britain rarities |
| View | Cinderella Stamp Club | 03 Oct 2020; | | Cinderella - world |