This is a IBM model F right?
On a modern computer, do the upper row of keys and the ones to the left of the keyboard do anything?
That is a first-generation Model M 122-key terminal board. The case is considered desirable (by me, anyway) because it can easily be made to fit the Model F-122 which often sees case damage.
You will need a converter such as "Soarer's converter" with a breakout board like a Teensy. That will activate all the keys. It would make a fun project.
Since you would not have to pay shipping, it is probably worth $30-40 on ebay, but I would start at about $20.