Technically, this is a piece of Elegant Glass from the Depression Era.
It is not part of what we group as the Adam to Windsor DG patterns. This
of course, is not Newport. Newport's pattern is mold pressed. The design
on your plate has been wheel cut....
Once again...no pics are showing. Very few Jadeite mayo ladles were ever
made. I'm guessing you have a reproduction by Mosser or Summit Art Glass
from the 1990's.