Do you remember each of your bitcoin addresses down to the last digit?
No, but I know enough to find back at least some of my addresses.Quote
It seems to me that it would be more efficient to take a photo of the card from paper wallet
There are only a few types of paper wallet that have been used a lot. I can already take a guess: about 10 cm long, 5 cm high, yellow flowing into orange, green on the edge and green/yellow/orange at the back. This is the default paper website created by a website that will scam you now.Quote
So at least there will be a chance that the owner will recognize his paper, card or or some other sign if he sees this topic.
They all look the same 
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But I can’t immediately figure out how the owner will confirm his right to this 0.6 BTC if he has neither backups nor access to any information that allows him to confirm.
Be creative: "Before laminating it, I wrote the current date in blue ink on the paper. I can verify the handwriting is mine."By posting an image, you make it easier for scammers to describe the paper wallet.