Joyce Nordstrom for Coats & Clark

Red Heart Royale Fashion Crochet Thread, Art. 164, Size 3,
150 yard ball
No. 775 Warm Rose - 1 ball

Crochet hook size U.S. F-5 (3.75mm)

Gauge: 20 sc x 26 rows = 4”

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There was a matching ruffle skirt for this Beret as well:
https://www.ravelry.com/patterns/library/ruffled-skirt-5