Late Teens Era Dress

From the seller:

Wow. This is so beautiful & interesting.
The color is a steel, plum. Love the plaid accents adorned with buttons. The buttons are all there. The lace is pretty good shape with just a few holes around the neck. there is some discoloration to the lace. I have never seen this before but there are wire, squiggly braces in the collar to help keep it upright around the neck.
There are some faint stains, discoloration in several places. On the skirt, the wrists..
The belt needs to be retacked.
I've tried to cover all of the issues. You may find small issues I have overlooked but as you can see from the photos, this is in incredible shape considering for its. You may find a missing snap r a small hole
My mannequin is a size 2 & this just barely fits her.

From Me:

Post World War I most likely. You would still see this style in the very early 1920's as well.