Bip39-dotmap https://penzu.com/p/2ea6922b70254307 Although it takes advantage of BIP32 process it is possible to even now import BIP39 seeds into Electrum wallet. Also aside from BIp32 There exists BIP44 Model which some wallet use for that era of seeds. Some wallets can import various seed phrases and a few have only https://www.4shared.com/s/fAf7kF4dLku