It measures 18 x 21-1/4.
I don't know where the 1/4 came from but I didn't measure anything, it just happened.
Here's what the back looks like.
This goes to Melissa and Kaveh also.
It's a queen-size double wedding ring that was made for me in the early 70's by my grandmother. She was in her mid 80's at the time.
It is actually white which shows better here. It's hand-pieced and hand-quilted. I think it was probably a church group in Bethany that did the quilting.
The quilting shows a bit better here.