Queensland State Archives posted a photo:
Artwork by Frank Olsen
Also known as the Four-lined Grunter, this fish is found in the tropical Indo-west Pacific. It is known in northern Australian waters from Shark Bay in Western Australia to Smiths Lake in New South wales, and possibly south to Sydney.
A coastal species, usually in schools, they are often found in brackish waters to the depth of 39 metres, and are also common in estuaries. Juveniles are found in seagrass beds and in mangrove bays.
Trumpeters feed on small fishes and invertebrates. The eggs are guarded and fanned by the male parent. Generally silver in colour with four to six dark horizontal lines, these fish croak when taken from the water.
Description source: FishBase, Fishes of Australia
Image source: Queensland State Archives, Digital Image ID 6249