Good morning, Benelli, Keith, and Peter;

Agreed that it is an oscilloscope camera. I have two models by Tektronix here; one that uses Polaroid pack film, and an earlier version that used the old Polaroid roll film. I do not know how many rolls of Polaroid Type 107 3000 ASA film I ran through those things back in the 1960's. I do remember that I bought them by the box from the supply people. From their refrigerator to mine on the second floor of Building 53.

The sample that Benelli (nice Italian motorcycles) has may be a special modification for a medical application.