Featured on the cover, right center.
Pattern on page 9 with detail photographs on page 10 and 11

A very lacey doily, made with size 20 thread about 300 years, measures 14 inches dia

Elizabeth Hiddleson recommends using a US 9 for size 20 thread.

A doily in 25 rounds
Pattern features:
tr
dtr
cluster stitches
scallops made from filet of dc/ch1
picot edge

Each of the 8 scallops and edging are finished separately. The single crochets hide the previous rounds extra threads but does require lots of trimming after blocking.