Material: wood
Manufacturer: Columbia Yarn, Philadelphia, Pennsylvania
Length 1916, 1918: 9″
Sizes 1916, 1918: US 5, 7, 9, 11
Double ended hook
Lengths 1916, 1918: 14″ 20″
Sizes 1916, 1918: US 7, 9, 11, 13, 15
Columbia gauge card, Columbia Book of Yarns, 17th ed, 1916, 19th ed, 1918