Probably in the $300-500 range, if it's in pretty good shape. Check particularly for pinhole leaks in the bellows, does the shutter sound accurate at all speeds (if not figure around $80 for CLA), and is the glass clean. Compare the rangefinder to the groundglass focus, but I think that rangefinder is adjustable. There should be a review of the Busch Pressman D on lfphoto.info, and I think there's a page about it on graflex.org, even though it's not a Graphic camera.