Series 1 Headlight units

[Simon Crispe]

I have the part number for the early PL 700 series Lucas Headlights for Right Hand Drive as Lucas No. 556599 taken from my early parts book. I have found a pair of apparently correct NOS units that have Right Hand Drive embossed on the lenses but they have Lucas Part No. 556457 on the lenses and this number does not corelate with any of the numbers in my Jag parts book. Can anyone with the Lucas Parts books give me a steer as to whether the 556457 units are correct for an early RHD spec car?

Thanks in anticipation!!