Art Metal Inc. mid-century modern credenza

We found this Knoll style credenza at a yard sale for $15. After we brought it home we saw the label inside that it was made by Art Metal Inc. from Jamestown, NY. After doing a bit of research we discovered that these pieces are very hard to find. The company has not been in business for decades and we were only able to find one other Art Metal Inc. credenza for sale anywhere on the internet. It's in pretty decent shape except for a few scratches and slight denting on the metal doors, a tiny bit of rust on the chrome and a couple of small dings in the formica top. Just curious what it's value might be?

P.S. We're huge fans of the show. We just finished watching all 38 episodes on Netflix. Can't wait for more!