Older box, no full length deep drawer for sockets, looks to be in decent shape. Can't tell depth or ball bearing slides. Range would be $800 to $1500 IMO. Note that is a WAG at best.
MB1310/MB1320. They came with a metal tag on the back with model/serial number. I sold a lot of those in 1990-93. Roller slides on all drawers. That's a nice set of boxes.