The Royal Armoured Corps served as part of the 50th Division on D-Day with 2 units from the Westnminster Dragoon Guards and the Royal Tank Regimenets. Would these units worn the Cap Badge of the RAC or their own regimantal cap badges?
Paul I would suggest you join the sister site WW2Talk which is more British/Commonwealth orientated, recently had a couple of threads on the West' Dragoons TD