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Can I still use old stamps? When non-barcode stamps expire in 2023 and how to swap them with Royal Mail
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2nd Class Stamps with the Queen or Kings Head (4 Pack) Standard UK Letter Stamps BARCODED Self Adhesive Postage Stamps 2nd Class Royal Mail Stamps UK 4X UK Postal Post Office Random
Norvic Philatelics Blog: Barcode added to 2nd class business sheet stamps: improved facilities for customers, and possible anti-fraud device.
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Enhancing Efficiency and Personalization: The Introduction of Barcodes to Royal Mail Stamps | GB Stamps | Albany Stamps
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