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What is the thumbwheel contraption with the light (appears to be on the ceiling)?
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That was back in the day when the government was going after company or business vehicles as a taxable fringe benefit. As I remember they were contending that unless you drove a private car to work and then picked up you company car for the day you could not claim the car 100% as a business expense. So for a couple of years you were required to log personal vs business mileage in order to claim the car. The wheels would help you keep track of the miles.