Strip Chart Seismic Record
Strip chart record for one day unrolled across table surface.
The white strip on the table is the chart record.
One day (24 feet) of record is shown.
In this view, the rear of the room is to the left and the front of the room is to the right.
The horizontal Lehman seismometer is closer to the rear of the room and the strip chart
recorder is closer to the front.