Looking for a 1976 A-body A38 police certified speedometer

I have a 200 'mph' speedo but I don't think it's certified. I know it's actually a metric speedo but it doesn't have units on it, so it's a 200 mph speedo now.

Yup, that's the export speedometer. Here's a pic of the NOS one I sold on here some years ago—part numbers up at the top might enable you to find another. All it takes is an appropriate speedo drive pinion and it'll indicate MPH.

Abody_Speedo_200.jpg