In 2010 there were another 19, because the year was now coded in to the design.
But when 2011 came, 'keeping things simple' meant having one set of numbers for the stamps with no year code, and another set for those with a year code, no matter what that year was. Which is fine if you want a simple list – but serious Machin collectors wanted every variant, and dealers needed a simple way to identify separately the stamps from each year. With no central plan from SG, many dealers devised their own – different – systems.
Collectors were confused, dealers were confused, and catalogue editors were confused. Stanley Gibbons catalogue editors managed to assign three different numbers to the same stamp in one year (Concise, Collect British Stamps, and new Concise). And they decided to keep things simple by listing the original stamps, and those with the 2010 code separately.
The Norvic system is unique in that, bar the unexpected, you can work out what the Norvic numbers will be for any new stamp that is issued in 2014 and beyond. Our Checklist has been prepared and refined with the help of collectors and other dealers. Now that we have agreement from Stanley Gibbons to cross-reference to their numbers, we can make the Norvic Checklist available to all dealers and collectors worldwide free of charge.
Simply visit this page on our website and fill in your email address: read the rest of the blurb as well, because that tells you what we won't do with that address! And you can also see more sample pages than I'm showing here.
Oh, and In 2013 over 50 new security stamps appeared as reprints of original issues were needed. So far in 2014 we are over 30 more new stamps!