Just had a bit of a think about paint manufacturers in Adelaide and the only two that come to mind for that time period is Solver Paints which were located at Belford Street Devon Park, which had many contracts for industrial paint use with the SA Government such as the PBD (Public Buildings Department), Housing Trust (Housing SA) and most other Local Government departments. Solver were acquired by Wattyl (located at Kilburn SA) some year back now and have told me that they have nothing on their computer systems, but I might dig a bit deeper there and try and find someone that was an old Solver employee. The other company that made paint here in SA was Dulux at Regency Park which were acquired by PPG quite some time ago. I shall attempt to make contact with someone there tomorrow and see what they might have on file.
Nothing to lose I guess and everything to gain as I put it.
BB