These square base glass mixing bowls were made by Federal Glass Company in the 1930s in their Golden Glow color. The larger bowl is 9-3/4" diameter by 4-1/4 inches deep, the smaller one is 8-3/4 by 3-1/2 inches. They're the middle sizes in the original set of four nested bowls.
They're in very good condition for 90 year old glass kitchen bowls. The small bowl shows almost no signs of use. It's still glossy with no damage, not even stir marks. The larger bowl has stir marks inside and light contact wear from long term storage and use. There are no chips, cracks, or fleabites.