This is a light blue colored art pottery style mixing bowl.  It is well made but is unmarked and I haven't been able to figure out the maker based on the shape.  The closest I've found are attributed to Bauer Pottery out of California. The clay body is thick, making it a heavy bowl and the outer sides are slightly segmented giving it a somewhat beehive shape.  It measures 10" diameter and is 4-3/4" tall.

Thanks for looking!  If you have any questions, just email me.  Will happily combine shipping on most items.  Just getting back on here and working full time but have been buying some cool stuff so keep an eye out, I'll try to get things posted when I've got a chance.  Have a great day and happy hunting!