This is the “Princess” line of New Martinsville Glass, later the Viking Glass Company. The cutting was done by W. J. Hughes Corn Flower Ltd. of Ontario, Canada from the 1930s-1979.
My daughter bought me a great book by author Krista Taylor – Canadian Identification & Price Guide to W.J. Hughes Corn Flower Glass. It is informative and has a number of unusual pieces in it. Ms. Taylor mentioned that the older pieces of the Princess line were decorated with more flowers and leaf sprays and that pieces produced after 1950 tend to have less cutting (p. 212).
I have to assume, if this is true that this is a more recent piece. There is only one flower and on spray on it.