Went thrift store hunting today before I watched the twins...Got lucky I think. Bought these three for a total of $3.21.
The pink one has an inscribed? mark: L over G with a staff running up through the middle.
For a minute I thought it was LCT...but the staff is not a T...I think.
The mark on the pink one sounds like it may be imperial glass . Circa 1972-1981
In 1972 Lenox bought Imperial and continued producing glass adding an L to the IG.
I have a milk glass piece that looks similiar ( but without the L in the mark)