Federal Glass, USA.
Pattern: Diana Swirl.
Demitasse cup and saucer.
The cup stands 2" high x 2-1/4" in diameter at the rim and tapers to 1-1/8" at the foot. Clear glass, with swirled ribs on the outside, smooth interior.
the saucer measures 4-1/4" in diameter. It is clear glass with a swirled ribbon the underside, smooth top.
This set is in very good condition.