These are Concaves out of a Case IH 2366 combine. These would be for what Case called a small class rotor for the 60's series like a 1460, 1660, 2166, 2366.
2 Sets of Large Wire
2 Sets of Keystock
1 Set of Small Wire
1 Set of Slotted Grate
Call 78Five-476-Five8One5 for more information.