the dial face cleaned up reasonably well, i'm gonna use it as is, it will match the other aged instruments in my truck the photos attached are "cleaned.jpg" this is the result of 48 hr room temperature soak in Evaporust cleaner, then gently rinse with cold water and massage any particles off with fingers only not even a brush. then it air dried well for a couple days "coated.jpg" is after i applied a thin coat of Rustoleum satin clear to help stabilize the surface to lock everything in place and prevent new rust the back side will get a new coat of plain white
i'm gonna definitely check out the odometer later to compare to the 0-90 MPH cluster, i suspect it will be in miles but i'm curious now to see if i could find appropriate gears to turn it into a KPH odometer. gonna put a pin in that idea