Re: [INFO]-Crypto Stamps- Collectable Blockchain postage stamps
yes, I got the information per mail but is in German.. 
Some collectors do mail in a bundle with envelopes and stamps to them with instruction where they want there ink and they mail it back. You usually have around 2 weeks or longer until the ink stamp is "retired". Maybe that is a workaround for you? It is only for FDC that are not going into actual circulations (especially if sent registered).
Some collectors do mail in a bundle with envelopes and stamps to them with instruction where they want there ink and they mail it back. You usually have around 2 weeks or longer until the ink stamp is "retired". Maybe that is a workaround for you? It is only for FDC that are not going into actual circulations (especially if sent registered).