These flaws were found from first printing of QE2 stamps
Genuine 2nd Class Barcode Stamp 2022 Holly Green M22L
From sheet Cylinder W1 Date 011221 Grid 1
ND Error:
SG has catalogued this flaw in 1977 definitives catalogues. See image.
Unique Error/Flaw in new barcode stamps
Dispatched with Royal Mail Letter Proof of Posting