3 1/8" Thin Bi-Pointed Knife. From the collection of Curt Craig of Iowa.

3 1/8" Thin Bi-Pointed Knife. From the collection of Curt Craig of Iowa.

3 1/8" Snyders. From the collection of Curt Craig of Iowa.

3 3/8" Knife. From the collection of Curt Craig of Iowa.

3 1/8" Snapped Base. From the collection of Curt Craig of Iowa.

3 1/4" Square Knife. From the collection of Curt Craig of Iowa.

Obsidian example from the CLP Museum and reported from Central California. Shellac present from an early collection.

3 3/8" Tabular Chert Paleo Knife. From the collection of Curt Craig of Iowa.

4 1/8" Sedalia. From the collection of Curt Craig of Iowa.

3" Blade. From the collection of Curt Craig of Iowa.

5 1/8" Flint Celt. From the collection of Curt Craig of Iowa.

3" Snap Base. From the collection of Curt Craig of Iowa.

3 3/8" Blade. From the collection of Curt Craig of Iowa.

6 3/16” Bi Pointed Knife of White Chalcedony - from the Collection of Harvey Bissell of the Bissell Carpet Sweeper Family

3 1/2" Bi Pointed Knife, Missouri, Ex Donnie Austin Collection

18" Fossilized Buffalo Skull. From the collection of Curt Craig of Iowa.

2 3/8" Heartbreaker Snyders. From the collection of Curt Craig of Iowa.

3 1/8" Archaic Knife out of the Jim Millard Collection, South East Iowa / North East Missouri

4 3/8” Constricted Center Bi Pointed Knife of Translucent Chalcedony - from the Collection of Harvey Bissell of the Bissell Carpet Sweeper Family

4 3/4" Bi-Pointed Knife, Very Fine, One End Ground, Modoc Co California, 1916, Old Boston Massachusetts Collection

3 3/4" Cobbs with photo where found. From the collection of Curt Craig of Iowa.

3 1/2" Blade with photo where found. From the collection of Curt Craig of Iowa.

3 3/8" Cramer with photo where found. From the collection of Curt Craig of Iowa.

1 3/4" Side Notch with photo where found. From the collection of Curt Craig of Iowa.

3 1/2" Blade with photo where found. From the collection of Curt Craig of Iowa.