Here is a working Stewart-Warner 90 MPH "Survey" speedometer. It includes a rare factory column mount. That is a good thing, because these speedometers did not come with studs on the back of the cup (like normal gauges) that are needed for in-dash mounting. It's in very nice shape...shiny, no ding bezel, no scratches on the curved glass, original paint on the cup. The price is plus shipping....$15 to the lower 48. PayPal (F&F) or a Postal Money Order would work. The first P.M. committing to buy gets it.
The steering column mount is not commonly seen & when you do see one, the part that wraps around the steering column is not usually part of the mounting unit.