Hello,  Hope you liked last nights stamp. How about these.   This is the 19 1/2p value from the set. Issued in 1982 but with a variety I have not seen listed in GB Catalogue (unless the wording is different).  

I saw this described as double gray printing error and it was sold for over £10,000 in 2011. GB describes it as black printed double and if the same it is now catalogued at  £5,000 a stamp.  Check your stock :-)

happy studying of those old stamps

Best wishes

Michael

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