#2
I would avoid the Cab.

The lack of a name is a put off. No idea how it sounds, no idea how well it is made.
#3
That cab is probably fine...it's likely we can identify it. Let's look at the facts:

240W. That's not a very common rating...should help with searches.
It has vinyl covering, and a black grille cloth. What manufacturers make cabs that look like this?
It appears to have had a logo on it at one point, in the upper left corner. What manufacturers put their logos there?
Nope, no sig here.