Bip 39 index https://franciscougju442.bravesites.com/entries/general/Produce-Bitcoin-Addresses-from-Seed-Every-Little-Thing-You-Required-to-Know Although it utilizes BIP32 system you could continue to import BIP39 seeds into Electrum wallet. Also apart from BIp32 There may be BIP44 Model which some wallet use for that era of seeds. BIP32 and BIP44 get the job done collectively to inco... https://bookmarklogin.com/story20736568/bip39-key-new-step-by-step-map-for-bip39-github-https-www-youtube-com-channel-ucupxfytj0fb78sq55hu6ocw