Munktell / Bolinder-Munktell was a scandinavien grader manufacturer which has Volvo takeover. Here links to pictures from older graders: https://www.flickr.com/photos/splitt500/3984201791/in/set-72157622523246366 https://www.flickr.com/photos/splitt500/3984921682/in/set-72157622523246366
Here a video from an old Bolinder-Munktell Grader: https://www.youtube.com/watch?v=Ym4NASrAWrc