Thanks everyone. It's nice to be able to share my joy with people who "get it"....the boys think I'm a little mad (ok, a lot!) and my husband can't understand why I don't want a new machine with all the bells and whistles. He is quite keen on helping me with some restoration which should be fun.
I think it's a 16K which had a quantity of 60000 allotted. The allotted year is 1910, though the F series are dated 1912, which I think is the actual year of release.
Haven't named it yet....I think I'll save that for after a bit of restoration and some test driving. Anyway, thanks again....happy quilting.