The new stamps, which will connect "physical letters to the digital world," mirror similar ones already in use in France and Germany.
Royal Mail Christmas stamps are last festive issue with Queen's silhouette and first with barcodes
New King Charles stamp unveiled by Royal Mail will go on sale from April 4 once Queen's stamps have been used
New barcode stamps: what small businesses need to know
Printweek - Royal Mail 'reinvents' stamps with added barcodes
Is this an official letter? : r/royalmail
Royal Mail Adds Scan Codes To Stamps Offering Digital, 40% OFF
How QR Code® works - Explain that Stuff
Royal mail class parcel postage hi-res stock photography and images - Alamy
Eventually it will just be a barcode, won't it?' Why Britain's new stamps are causing outrage and upset, Society
Royal Mail unveils new stamps to mark 40 years of Terry Pratchett's Discworld
Isle of Man Post Office Introduces QR Scanners to Improve Convenience in Online Returns for Customers - IoM Post
Open And Closed Door Signs Board Royalty Free Vector Image,, 53% OFF
Final day to use Royal Mail stamps without barcode before charge applies
Royal Mail Adds Scan Codes To Stamps Offering Digital, 40% OFF