Vintage VEMCO Mark 12 made in 1982 with Vertical & Horizontal Arms. 37.5 by 60. This was later replaced with the model 612 V-track drafting machine arm; main difference is the Mark 12 Arm is static verses a movable arm on the 612, which is the main upgrade. This system does come with a horizontal track also a scale. It has all four end caps and wood stick on vinyl laminate on both of the tracks, which was standard from Vemco at the time. Item is a left hand track.
Features Protractor Head graduated in single degrees with indexing at 15° intervals etc… PDF is available for the 612 and is interchangeable with the Mark 12, except for the mounting which is stated above for the most part. Questions just ask.