Thanks for your comments. The old airport was (I think) to the south of the city near a creek where they, allegedly, had the odd hippo wandering onto the airfield! At the time we lived opposite the old KAR barracks which was between the city and the old airport.
The new airport was at a totally different location. I am still trying to find a satellite photo of the area to see if I can identify the old airport.
I will certainly call a the folks at Aeroplane mag to see if they have any photo's. Should have thought of that myself.
Appreciate your input Many ta's!
FW