Thanks for your replies.
Unfortunately, my camera's batteries need to be recharged and, since my phone is relatively new, I haven't quite figured out how to download the pictures from my phone to PC. Need to study up!
The topper is 28.5" square. I took a class a couple years ago and it has been sitting as a UFO ever since.
I will machine quilt this on my domestic sewing machine. I have been quilting for over 30 years. So, I am a pretty confident quilter. I was considering stitch-in-the-ditch, but am not very good at it. I can do meandering and numerous fairly basic freehand designs. I can also follow a traced pattern.
Thanks again for your help.