Looks like a pretty standard late-model (post 1955) Crown Graphic Special. This camera is a 4x5 not a 2x3 camera. Shooting MF would require a 120 roll-film holder, either one made by Graflex or Calumet. It looks to be in pretty good condition. You can probably date it more precisely if you rack the focusing rail cross-piece out beyond the front edge of the bed and if you look on the underside of that cross-piece you should see an imprinted date code on it. If you report back with that date code & the serial number a manufacture date can be determined.
An excellent resource for information on these cameras can also be found on www.graflex.org.

according to my "The All-American Cameras, A review of Graflex" book, you have a Pacemaker Graphic, vintage 1947-1973. It has a coupled rangefinder on the top and the bracket on the side was an attachment plate for either a three-cell flashgun or later early models of electronic flash unit. I cannot see from the front on image, but if there is a rear shutter (there will be winding knobs on the side beside the flash bracket) it's a Speed Graphic, without the rear focal plane shutter it's a Crown Graphic. A slide in roll back, or one that replaces the removable ground glass back (like I have on my later Super Graphic) would permit you to use more economical 120 roll film, but you would have to mask down the viewfinder to obtain the proper framing for the reduced image size. Slide in masks for the viewfinder were offered, but would be hard to locate today. If you do use the camera, you should check the bellows for light leaks first. Just extend them to the maximum length then remove the back and run a low wattage bare light bulb (about 25W) along each full length for the four corner folds of the bellows in a darkened room to check for tiny pinhole leaks. Black plastic electricians tape makes a good temporary cover for any leak found. These press cameras were real workhorses in their day for all types of photos. You might want to try using it before selling it.