DAUM MOTTLED ART GLASS LAMP SHADES, LOT OF FOUR

DAUM MOTTLED ART GLASS LAMP SHADES, LOT OF FOUR, frosted colorless with opal, pink, and green mottling to the exterior, each bell form and signed "DAUM/NANCY". France. 20th century. 4 1/8" H, 1" D fitters.
One having a few minute flakes to the bottom rim; another having a single flake to the bottom rim; remainder undamaged. Each having flaking/roughness to the fitter, as made.
Condition Report: One having a few minute flakes to the bottom rim; another having a single flake to the bottom rim; remainder undamaged. Each having flaking/roughness to the fitter, as made.