Re: [INFO]-Crypto Stamps- Collectable Blockchain postage stamps
This might help https://hackernoon.com/the-first-blockchain-stamp-in-the-world-and-what-is-means-f6f777838370?gi=848be9321b3b
Well, well, after thinking and trying a bit further I discover the writer of this article has 2 red OCS stamps in his wallet, well done!
