Queensland State Archives posted a photo:
The Australian Estates & Mortgage Co Ltd was founded in 1894 as wool and produce selling brokers, stock and station agents, pastoralists, raw sugar millers and cane growers. It renamed The Australian Estates Company Limited in 1936 and was taken over by CSR Limited in 1975.
As of August 2017, both these building still exist.
Queensland State Archives Item ID435653, Photographic material