This is an extremely hard to find original choke assembly or air damper for a Fairbanks Morse throttle governed or hit and miss gas engine. It is part number ZAC2108 and is in used condition with no cracks, breaks, or repairs of any kind that I can see or know of. The mounting holes are 2 1/4 inches apart on center. The intake hole is about 1 9/16 inch inside diameter and 2 inch outside diameter. The hole in the flange is about 1 3/8 inches. The choke lever moves as it should and the quadrant and choke plate are in nice shape. I believe this is for a 1 1/2 or 2hp Z engine but could easily be used on a Fairbanks H or T engine as well. Please measure your engine or consult your parts book to be sure. This choke assembly is quite tough to find so if you’ve been looking for one to complete a restoration or to put on the shelf with the rest of your engine parts here it is. The pictures tell the story. It would surely beat making one! I can be reached at 262 573 193 1 if you’d like to talk about it.