Machin Security Stamp Checklist

We are pleased to announce that the new Norvic Checklist of Machin Security Definitive Stamps is now available free of charge to all collectors and dealers.

Designed to fit the gap between the Stanley Gibbons GB Concise Catalogue and the extreme detail of some other lists, this identifies all the values with all the source and year codes, cross-referenced to SG numbers and Royal Mail product codes.  Source booklet numbers are also included to assist in precise identification.

Table showing 2nd class counter sheet listing


Dates of issue or earliest known dates (EKD) of appearance are shown.  Over the summer the list has been checked by a number of customers and dealers, and many corrections made, but more information is waiting to be discovered, especially on dates.  Checking stamps on ordinary mail may yet reveal that stamps were actually in post offices or other retail outlets earlier than previously thought so the list is always subject to change. 

Some collectors (and dealers) record these stamps in greater detail than we do, for instance according to the size of the gap in the security slits, according to the shape of the perforation, the direction of printing, or the orientation of the backing paper printing.  Ours doesn't claim to be a complete list of Security Machins according to those criteria, but it does list all the basic stamps - and a few extras.

The Norvic numbers are used in our webshop, and we hope that this will help customers to find what they are looking for an fill the gaps.  

To download a copy of the checklist visit this page on our website and download the latest version.

 

19 October 2014 (Updated 29.4.21)

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