Surprised by Stamps

Busy sorting out the house can be difficult but full of surprises . I found an envelope full of used stamps . I am a collector but not of stamps but when I got them out and looked at them closely they became very interesting . They were of a time ( not that long ago ) when the the world was a very different place - the globe was redder and sending a letter was a lot cheaper .
Can you spot the odd one out ??
I included some for our Australian friends .
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