This is for speedometers with 'MPH/KPH' at the bottom.  Flexible Drive Speedometer Cable for MPH/KPH Speedometers 1962-1965 Silver Cloud III and S-3 Silver Cloud III from SGT229 Silver...

This is the speedometer cable, that relays your cars speed to the odometer.  1962-1964 S2 (B1AA-B376DW), S2 Continental (BC1AR-BC129CZ), S3 (B2AV-B136FG) Cloud II (SPA2-SAE685), Cloud III...

This is an original Rolls-Royce speedometer in miles & kilometers. 1945-1954 Rolls-Royce Silver Wraith LWB (E,F,G,H) 1955-1959 Silver Cloud I CORE CHA