Free Vintage Pattern #10
Rose Filet Camisole Yoke
Belding's Book of Silk Embroidery, Knitting, & Crochet
Mid-1920's
I used a size 12 steel crochet hook and vintage J & P Coats "Paisley Penny Ball no. 30" crochet cotton, which is slightly larger than sewing thread, since I didn't have any crochet silk at the time.
I also added an inch or so more under the arms since I was working with a smaller hook.