3-ply

previously known as “Featherdown” (without “Zephyr”)

Interchageable with the following Minerva yarns:

• Cuddle Yarn
• Heather Sports Yarn
• Lustre Crepe Wool and Rayon
• Merona
• Minal Zephyr
• Pompadour Leightweight
• Sock Yarn
• Sports Yarn
• Velveen

(source: Minerva Complete Knitting Manual, Vol. 61, 1942, First Edition.)