Guys, Electrum was mentioned in
November 10, 2011 for the very first time in this forum, it can't have been an Electrum wallet. There weren't neither seeds nor HD wallets back then. If it was a wallet funded prior 2011, it must have been using Satoshi's Bitcoin-QT.
the seeds it has are fine in the Electrum V1 dictionary
so it is indeed an electrum wallet