A listing of stamps by value and type, with details of the Royal Mail products which produced each one, showing the more detailed numbering system we use. Dates of issue or discovery, and dates of printing are shown where known. A cross-reference table of the stamps based on the Stanley Gibbons catalogue is also included. The latest version includes the numbers in Gibbon’s Concise 2019. Also includes a table showing which stamps were issued in each year.

This is a very useful and professional guide to identifying stamps of this type. As notified on the Stampboards forum today by Ian Billings, this brings things up to date to the 11th February.

It comes in PDF format and can be viewed and downloaded here:

Norvic Machin Security Checklist PDF

The price? Oh it’s free! Thank you Ian and team.