Hi-Plains Potatoes are oblong with some russetting on the skin.
They were marketed as all-purpose for direct to consumer sales and for processing into potato chips (aka crisps in the UK.)
Possibly extinct.
History Notes
Hi-Plains Potatoes were developed at the University of Nebraska from a cross between Kasota potatoes and a potato referred to as “USDA X528-170.”
During development, the potato was referred to as “Nebraska 302.50-5.”
Released 1965.