Material: celluloid
Manufacturer: Columbia Yarn, Philadelphia, Pennsylvania
Lengths 1916, 1918: 5 1/2″, 8 1/2″
Sizes 1916, 1918: US 2, 3, 4, 5, 6, 7, 8, 9, 10
Double hook
Lengths 1916, 1918: 12″, 18″
Sizes 1916, 1918: US 9, 10, 11
Columbia gauge card, Columbia Book of Yarns, 17th ed, 1916: 19th ed, 1918
