Thanks to Chris R (who thought he had found an error - but then we all can hope, can't we?) here's a good photo of the B code.
2475. 🇦🇺 Australia Post New Issue Explosion.
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*New issues*.
🇦🇺 *Australia Post *-
See also Blog 2474.
3 April 2024 - Greetings stamps - 8 gummed stamps, 1 gummed ‘sheetlet’
containing all 8 stam...