What are these????

I saw some Gilera motors that I can't identify. One is a LEFT HAND shift single with the prefix 0000-looks like a fairly big motor. Could it be a Gina? Thae Argentine Gilera?

The second is another big single with the prefix HS. It appears to have paint on it that is almost gold-ish in color.

Both of these are supposedly from the 1960s. Any ideas?????

Rob Eiring