Jadite postage stamp dauber.
Height 4-1/2 inches.
Hollow in lid has an ancient sponge.
The moisteners were made by Houze for the Art Products Company from 1933-1946, at which time the mould was returned to them.
A similar object known as made by Crescent Glass is in the Museum of American Glass in West Virginia.
Crescent would have used them prior to 1933 or after 1946.
Image of the black/marble example provided by Bill Thompson.