Beautiful Shells found on page 26 with detail photos on pages 27 (Small Doily) and page 28 (Large Doily)
A Shell Doily Set

Requires about 400 yds, size 10 thread for a 3 piece doily set. Larger doily 11 1/2 in dia., small 8 1/2”

Pattern for both doilies is the same through Round 10
Small Doily has 14 Rounds
Large Doily has 17 rounds

Pattern features
Triple Picot
Three Chain Lacets
Shell in Shell