Herters large primer arm for a Model 3, 3A Super 234, 03, 81 Reloading Press.  It is designed with a Large Size Primer that can be used for reloading Rifle and Pistol ammunition of multiple caliber sizes. Made in the United States. This arm has been modified with a second spring seat in the lower portion of the arm. This  is a long body version. Overall length of the body is 3 3/4". Looks to be in great condition.