I know this has been a few years , but this post came up while I was searching for info on a Daimler brass plate I have and it has on it Type CJK
I also live in New Zealand . From what you said there were very few that came to NZ . Is it possible this plate came of the vehicle you have or does it have the info you were looking for . Steve Lawson Nelson email fernleighbooks@gmail.com and I can send you a picture .