Regarding the Gevil Megillah Posted by Reb Eli Gutnick:
Attached are few pictures taken from a book ( אסופת כתבים עבריים מימי הביניים כרך ב כתב ספרדי) dated to Spain before the expulsion.
At that time, before the printing started Sofrim copied from another Torah or from a hand written Tikun. The same Sofrim That wrote the Tikun also wrote the Sefer Torahs. So we can learn on the style of the Ksuv from the Tikuns.
Also attached (first picture) scan of Shem Tov Eben Gaon own Ksuv Yad. (1300's spain)