The Seymour Blomfield Postmark Sheets for Study VI.       Blomfield's index. Blomfield started to publish in 1936 with further reports in the L'OP. He later issued data sheets to Study Circle members, beginning in 1938 with the classic postmarks (1865-1879). Blomfield continued with further data sheets with postmarks up to the end of the monarchy. These were expanded by Mackenzie Low and Schmidt, with some finds being published in the QC. The sheets appeared to be available up to the 1970. The sheets reproduced here are the latest provided, some of them being updates from the mid-Eighties. Some of course have been replaced by articles in the QC and by detailed books on single subjects. Setting aside these books and articles, these Blomfield sheets, along with Smith, are still a useful starting point. The special-purpose handstamps are often found misused, probably from carelessness or lax approach by the post office employee or because the appropriate canceller had been mislaid. No particular meaning need be attributed to this apparent misuse.