various old keys and seeds found

hi,

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been in cryto since 2016 and im basically sweeping all my old wallets and exchanges hoping to find some old gems.

security was pretty poor back then as was only buying crypto to purchase certain products, and as much as it pains me to see all my past tx data im hoping to find some valluable dust.

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on my email accounts and computer ive found a few un named files and notes containing what i assume is private keys and seed phrases.

is there anyway to tell what block chain these are from for instance the private key i have for one starts with L4 but nothing comes up when import it into electrum and meta mask dosent recognize it.

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i have a fair few seed phrases i have no idea what coins for, is there a wallet multi coin wallet that will detect the chain its from?

Scammers can fuck off so dont both messsaging

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Cheers

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