New Old Stock International Harvester Rear Toolbar Cultivator Shank. 

Cultivator shank has the original metal part number tag.  Referred to as "No. 16 Type Spring Trips" in the IH parts catalog. 

Will fit cultivators using the 1-7/16" inch diameter round cultivator shank.   Please measure your shank before ordering since IH offered multiple shank diameters.

Round shaft is 20" inches long.

Total length is approx 30" inches.

Case IH part number 518017R91.

New old stock from a dealer liquidation.

Cultivator shank will have light surface rust as shown in the photos from years of previous storage.