mod vintage clear glass nest of bowls, flat bottom round cylinder shape

Nest of three clear glass bowls with a simple, modern shape - they'd be great for serving or displays (flowers? terrariums?) in a mod setting.

From largest to smallest, these measure 7 1/2" x 3 1/2", 6 3/4" x 3 1/4", 6" x 3". All are in excellent condition without damage or wear.