How do you date Indianna Glass' Hen on Nest?

Question:

How do you date Indianna Glass' Hen on Nest?

"Hen on Nest" is a glass candy bowl in the shape of a hen on a nest. Many companys make them, but how do u date the ones that are made by Indianna Glass? (Ex. 1920's)

Best Answer - Chosen by Asker:

My Mother has one of those too. My guess is to take it to a couple of antique dealers and get their opinion.