Hi!

When a physical stamp is bought on ebay (for example "Code [1]: 4ouHxo"),
is it possible the digital stamp (which is still in the first owner's ETH wallet) can be sold as well to someone else?

Meaning, the stamp "Code [1]: 4ouHxo" is physical sold to person "A" through ebay,
AND "Code [1]: 4ouHxo" is sold as well digitally to person "B" trough "opensea.io"

The same question but regarding a stamp bought trough OnChain-Shop
I own a stamp "Code [1]: 71Qrnr", physical AND digital (in my ETH wallet)

Is it possible to sell "Code [1]: 71Qrnr", physically trough ebay AND
sell "Code [1]: 71Qrnr" digitally trough "opensea.io"?

Just wondering...

Thanks!

Regards