'65 Odometer only reads 1/10th of miles?

Update: Visited a local gauge repair shop. The owner immeadiatly noticed cracks in the white portion of the odometer on the far right (where the tip of the pen is pointing in the photo). I decided to simply put the speedo back in the dash as is for now. Trying to place some type of glue/adhesive over the top of the damage was the only "hail Mary" solution without replacing the defective part.

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