Gamba is now owned by Repetto. It appears that Repetto may be downgrading its pointe shoe business, as Gamba isn't even mentioned on its website and it now has only two Repetto pointe shoe models. Gamba shoes can still be seen on sale around the world but it's not clear if, or where, they are still being manufactured.
The Gamba 93 is a full-shank pointe shoe with a medium to low profile and medium vamp. Best for a Grecian foot.
The low heel may be a problem for some dancers (adding an elastic loop sewn to the heel will help), but can be a boon to anyone with Achilles tendon issues.