Very nice condition, I see nothing more than a couple of small flea-bites where the body sits on the base. There is some scratching to the basin from use.
Not bad at all for being 100+ years old. The bowl stands 11-1/4" tall x 12-1/2" diameter at the rim.
The thickness of the glass is 1/2. It's not signed, as far as I can see. Very heavy at 25 pounds.