Speedo 150 MPH for Triumph Norton BSA smiths replica speedometer Black Face

You will get this brand new, never used speedometer. it is a direct replacement for the original Smiths 150 MPH speedometer gauge, with tripometer. 1 3/4" deep under bezel, 2 1/8 deep including bezel, 3 13/32" diameter including bezel, 3 1/8" diameter of bottom. The box says ratio 1 to 1 / Even though it should be 1.25:1 so I suspect it is a typo on the box.