01-06-2020, 09:42 AM
RN (mostly) had the fuel tank under the bonnet RP had the fuel tank at the rear of the car. Body number was stamped onto the top of the tunnel just behind the gearbox. I say mostly as towards the end of the production run, RNs were starting to use the newer RP bits and bobs. My registered RN Oct 1932 is front tank.