These were issued back in February but I just recently learned about them:
Ground Parrots stamps from Australia
I see!
Actually, this is an FDC, First Day Cover, not maxi card. I wish we had some official maxi cards… But the stamp is nice 
Oh, you’re right, thank you for correcting me!
Why are those chemical symbols on the back part of the fish? 
Is it especially good at removing these elements from the water?
I think, this are the elements which you are eating, if you are eating fish!
These are probably the heavy metals / metallic pollutants that fishes absorb from the water and bring into the food chain.
I think so too, it must be a warning of how much we’ve polluted the seas and effectively what we’re consuming while eating fish
Yes, these are the bad metallic pollutants lead, cadmium and mercury, but also zinc and iron, which our body needs.
together with the Aland stamp one of my most favourites. Love how it tries to arise awaress of water polution but still in a very subtle way.
Poland is so good in designing stamps! I always find Polish stamp so interesting to look at!
However, heavy metals mainly accumulate in the scales and gills of fish, which still means that our environmental pollution is very serious. This is a great stamp ::
Historic theaters, issued april 16
greek theatre of Siracusa (110 years since first classical shows), roman theatre of Lecce:
roman theatre of Volterra, greek theatre of Segesta:
roman theatre of Suasa
italian Vespa club (classic scooter), issued april 20:
Eleonora Duse (theater actress) 100 years from death, issued april 21:
All are B (1,25€) valid for domestic 20g, except Vespa that is B 50g (2,75€), valid for domestic 50g.
