This is a lot of 2 vintage self-sharpening "Dual-A-Matic" knives made by Crestline Products, Inc.
The knives have white handles and feature stainless steel blades with serrated edges on the top and bottom of the blades.
They measure about 12.75" tall, 1" wide, and 8" long for the blade.
Both of the knives were made in the United States.
These items come in good pre-owned condition.