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Archive ID #:
Cat. Number If known, from:
TBC [M21L MAIL sL]
(Mac OS Big Sur) HP Deskjet 2654 (1200 DPI, 24-bit Colour) through VueScan 9; Edited with GIMP; Lossless compression with ImageOptim; converted with Pixallon (NCH Software) to 350 DPI with 50% Lossy JPEG Compression
Queen Elizabeth II
Arnold Machin (Unknown)
Cat. Value (Adjusted Cat. value adjusted for condition:
2021, £1.70 turquoise counter-sheet Machin on type PB-sL security backing paper (SBP); includes left margin with official colour identifier “MARINE TURQUIOSE” with slight rightward offset. Has iridescent overprint with date and source code M21L MAIL, plus the usual repeating ROYAL MAIL.
Not used (or user unknown)
U-series (Security) Machins
2 bands (left and right)
Iridescent “ROYAL MAIL” (None)
Not Applicable (Not Applicable)
ID#: 1103 (Mint)
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