Luckylady, I buy and resell lots of tools and boxes. That is an older but well made tool box. They would not be desired by pro mechanics but would be desirable for somebodies home shop. Price will be determined by condition and how well the drawers function.
The pic really doesn't tell condition so look at the bottom edges of the box and drawers and look for rust. A little is to be expected, a lot will drop the price quickly. Then, how smoothy to the drawers open and close. Smooth and easy is good. Also look for dents and scratches. Less is good.
The $500 to $750 price range mentioned above would be for one in good to real good shape. If it is beat up, expect to get $300 to $500. If it is real rusty and the drawers don't work well $200.
I just sold a similar set up with a side box that was buffed and polished and working great for $800.
If you state your general location, some one here may be interested in it.