Pattern is for 2 lace insertions. Each insertion is 1” wide.
Insertion A: repeat pattern as many times as needed for desired length.
Insertion B: repeat rounds 2-5 for pattern, repeat pattern as many times as needed for length desired.

According to pattern: Brought to you courtesy of the DMC Museum of Mulhouse, France.
Skill level = Intermediate

Pattern 16 on pp 40-41 in Magic Crochet.
Pattern Minuciosos entredoses in Ganchillo Artistico.
Pattern Garlands in Crochet Monthly.