An absolutely beautiful example of a Heath charting machine. The unit is 13.75 inches wide, 8.75 inches high, 13.5 inches long, and weighs about 17 pounds. This machine holds a 10" wide, 120 foot roll of paper. It records 100 units wide, left to right. The standard is 2 inches per minute, optional rollers were available from Heath for faster speeds. It uses a standard fountain pen. Machines like this were typically used in medical fields, but electronic measurement were also used instead of using an oscilloscope if you wanted to save the output results.

The recoder measures 13.75" wide by 8.75" high by 13.375" deep.