…it the theme for today’s Sunday Stamps
In this case, the mirage is a distortion of the rising or setting sun due to refraction of light in a polar or winter temperature inversion.
Sunday Stamps: The Sun, Sunny Days…
In this case, the mirage is a distortion of the rising or setting sun due to refraction of light in a polar or winter temperature inversion.
Postcards Etc 
I like the variety you find for today. I didn’t know about the Belt and Road Initiative –I have heard something, but I didn’t know the name, so, thanks for the link!
I received the same stamp from the Netherlands, but I focused in the bird carrying a letter, not the sun!
The first stamp is really stunning.
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Omg! That snail is adorable!!!
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The solar inversion is fascinating, you have found a nice variety of suns
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Thank you!
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like Eva, I find the first stamp stunning. What a nice collection today, plus I actuality have sunshine to enjoy in person – Finnbadger
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Hooray for sunshine!
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You really did find a great variety of suns! I’ve never seen that first phenomenon, that would be really cool. The Chinese stamps would be a mystery without your explanation. The Swiss sunflower looks almost 3D!
vs
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Lovely collection
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