This is an unused flat bed chart recorder made by Linseis, model 250E.  The chart recorder is new old stock and is in very good condition but it did get one faded spot in the plastic as can be seen in the photos.  Since this recorder was part of an OEM instumentation set it had an extra chrome plug installed on the side of it but this has been disconnected internally and does not affect original operation.  Unit was tested recently and it works as it should.  

• 115 V
• Includes manual, power cable, 2 chart rolls
• Single channel
• Single pen
• 7 speed ranges
• Input:
• 1 mv to 50 V, selectable
• Banana plug and 5 pin DIN
• Accuracy: +-0.35 %
• Response time: 0.35 sec full scale
• Chart width: 250 mm