I JUST picked this up on saturday and came accross the posting for a rect. griddle in this forum. My books are unavailable at the moment, but I seem to remember something about Lodge's early (blacklock???) foundry having something like this and well, given the raised 7 on the bottom (I will post that picture last, it got me thinking MAYBE..... anyone have any ideas? I will post again after I clean this up. JVN