2 5/8" Double Knobbed Hematite Plummet with groove.

Very uniquely styled 2 5/8" Double Knobbed Hematite Plummet with groove. Found in the Midwest.This item was collected by old-time collector Gene Boardman between 1908-1938. From the collection of Walter Dudkewitz who bought the Boardman collection in 1970. Walt is pictured in the 1976 Whos Who in Indian Relics #4 page 78.