Yesterday I finally received a Letter with 2 CryptoStamps from the Austrian Post Office. Finally I get to have at least 2 of them. I am very happy since I already tried to get the CryptoStamp the last time but it was sold out within the first hours of release and I missed it. The CryptoStamps have a NFC Chip that can be read without opening the box. At the moment I don't know if I should open it or keep them locked with the official seal. So I keep them sealed at the moment but maybe I will open them later.
https://shop.crypto.post.at/product/ff3771662a8b46e3a04e2f59459633f9/