C8A HUA sign and markings

[Cschibsted]

hallo mlu forum !
This is my first go on this forum. I'm from Norway, and have been playing with CMP's since beginning of the 80's. In my garage there is a C60L ......a C60S Breakdown Gar Wood equipped and this C8A HUA. All in nice original running condition exept of this HUA. (1C3 body)
I wonder if all of you out there can help me with any information about this HUA.
This HUA served as a fire truck in Norway from 1948 to 1980. I have found its original markings under several layers of red and green paint.
I was told from people using it in the 50's that it had served in north Africa, because they found a driving logg in it.
Its made 15.sept 1943, mill. nr CA 4236618 and CMD 19233, I altso found the rest of a unit sign on the front ...77 ?
Do any of you know anything about these markings ? I'm starting a total restauration of it and find the markings very interesting !!