Excellent link! Thanks!
Need to read it 2-3 times or more, but there seems to be indeed a difference between the OnChain ones and the others.
Also, it is not clear if the OnChain ones look different, I'm still waiting for mine, so I don't know at the moment...
So, if I'm correct, each stamp of the 149,500 is sold with it's wallet aside to its physical stamp-part.
To start with selling digitally, you'll need to scratch...
1 of the 500 OnChain stamps is already in the buyer's wallet, and can already be sold through for example Metamask to another address,
without scratching, since it is already digitally.
(The first one who lets the stamp ship to his address, had the physical form, this doesn't have to be the first owner,
it only can happen once though)
Here is the text you'll get when entering 1 of the 500 OnChain assets on
https://crypto.post.at/CS1/... (asset):
" ... TRANSFER YOUR CRYPTO STAMP:
As the owner of this crypto stamp, you can transfer this asset to any wallet. You can use the following form for this. The transaction is created in your browser and only passed in encrypted form to the blockchain. Important: Please make sure that the receiver wallet can handle at least ERC-20 tokens, ideally also with ERC-721.
Start transaction ... "
Which is a difference when entering 1 of the 149,500:
" ... TRANSFER YOUR CRYPTO STAMP:
This crypto stamp was bought with a paper wallet. To transfer them to another wallet - for example, the one you already use - you can use the code located on the right part of the mark under Rubbelfeld [3] to start the transfer here.
As the owner of this crypto stamp, you can transfer this asset to any wallet. You can use the following form for this. The transaction is created in your browser and only passed in encrypted form to the blockchain. Important: Please make sure that the receiver wallet can handle at least ERC-20 tokens, ideally also with ERC-721.
Start transaction ... "
In this case the owner of 1 of the 500 OnChain stamps should be able to sell it twice (physically and digitally)
if he lets it send physically to his address.
I do wonder what happens if it is sold already digitally, and when the physical owner scratches the scratch part
Perhaps they come without scratch part
So, the stamps for sale on opensea.io would be or the scratched physical ones, transferred digitally, or 1 of the 500 (without scratching)...
All really simple isn't it!