steel plate with seed phrase, and here is the definitive guide: https://jlopp.github.io/metal-bitcoin-storage-reviews/
if you cross a border, memorise it for the trip.
I dont find paper/steel wallets safe. If a thief, or the government/police, or even a "friend" / family member, has access to it, it's game-over.
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It's not without its own issues but wouldn't a passphrase derived from the main seed words not written down help with this to a degree? They could find the steel with the seed phrase but you could have any number of wallets on top of that seed.
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Thank you for this link and information.
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