Recently purchased Pair of Lamps

I have just acquired a pair of these lamps.
The shade is not the original and I was told that they were silk but had disintegrated with age.
They a very tall and the applique on the glass are metal..the center flower is some sort of pottery.
The glass is pale yellow and it stands in four claw feet then on a brass base.
Im wanting to know how old anyone thinks they are.