Vintage American Furnace Co door catch / handle from AFCO model # SR160-MA
Please see pictures for description.
This door catch is in decent ahape. It's made to be versatile in case you want to adjust the orientation of the handle vs the catch you just simply loosen the set screw and the you can slide the catch off the square drive and slide it back on in any of the other 3 orientations (each 90° off from one-another). Once you have it setup the way you need it you can adjust the depth to give it the right tension and then lastly retighten the set screw.
The furnace I got this from had 4 handles total, 2 on the door to the controls and 2 on the door to the blower. I'm selling them one-at-a-time within this listing.
They sure don't make em like they used too....