It's Saturday and I finished the tat-along mat a little while ago.
I used a size 30 (correction the thread size is actually size 10) Aunt Lydia Crochet Cotton in White. The finished size before blocking is 11 1/2 inches.
The Lace Mat
Pattern by Norma Benporath
Chart drawn by Jon Yusoff
It will probably be 12 inches when I get it blocked.
The time I have invested in this doily is 15 hours.