Most are likely to be of minimal value. There are some rare shades of these, but you'd need an expert to examine them to tell them apart.
The only exception is the 2 M, and then only if it is, in fact, the quatrefoil watermark. The CV for the 2 M with quatrefoil watermark is €65,000, so don't get your hopes up that that's what it is.
Disclaimer: While a tremendous amount of effort goes into ensuring the accuracy of the information contained in this site, Stamp Community assumes no liability for errors. Copyright 2005 - 2026 Stamp Community Family - All rights reserved worldwide. Use of any images or content on this website without prior written permission of Stamp Community or the original lender is strictly prohibited. Privacy Policy / Terms of UseAdvertise Here